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12320031313120 = 255360672134921
BaseRepresentation
bin1011001101000111101100…
…0101110000110011100000
31121121210011011110021022111
42303101323011300303200
53103322411004004440
642111424431445104
72411043601206556
oct263217305606340
947553134407274
1012320031313120
113a1a994548133
12146b855686794
136b4a0a53a99b
14308415237bd6
15165713e834ea
hexb347b170ce0

12320031313120 has 48 divisors (see below), whose sum is σ = 29106894611088. Its totient is φ = 4927873582080.

The previous prime is 12320031313097. The next prime is 12320031313157. The reversal of 12320031313120 is 2131313002321.

It is a super-2 number, since 2×123200313131202 (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12320031313091 and 12320031313100.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4703260 + ... + 6838180.

It is an arithmetic number, because the mean of its divisors is an integer number (606393637731).

Almost surely, 212320031313120 is an apocalyptic number.

12320031313120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12320031313120 is an abundant number, since it is smaller than the sum of its proper divisors (16786863297968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12320031313120 is a wasteful number, since it uses less digits than its factorization.

12320031313120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2171003 (or 2170995 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 12320031313120 its reverse (2131313002321), we get a palindrome (14451344315441).

The spelling of 12320031313120 in words is "twelve trillion, three hundred twenty billion, thirty-one million, three hundred thirteen thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 36067 72134 144268 180335 288536 360670 577072 721340 1154144 1442680 2134921 2885360 4269842 5770720 8539684 10674605 17079368 21349210 34158736 42698420 68317472 85396840 170793680 341587360 77000195707 154000391414 308000782828 385000978535 616001565656 770001957070 1232003131312 1540003914140 2464006262624 3080007828280 6160015656560 12320031313120