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23312310323231 = 151154386161081
BaseRepresentation
bin1010100110011110100011…
…11110011100100000011111
310001112122010222201000122102
411103033101332130200133
511023422102420320411
6121325305535435315
74624154532151466
oct523172176344037
9101478128630572
1023312310323231
117478771477066
1227460b9685b3b
13100145917a867
145a84711b39dd
152a66178a6d3b
hex1533d1f9c81f

23312310323231 has 4 divisors (see below), whose sum is σ = 23466696484464. Its totient is φ = 23157924162000.

The previous prime is 23312310323209. The next prime is 23312310323293. The reversal of 23312310323231 is 13232301321332.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23312310323231 - 210 = 23312310322207 is a prime.

It is a super-2 number, since 2×233123103232312 (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23312310323194 and 23312310323203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23312310323431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77193080390 + ... + 77193080691.

It is an arithmetic number, because the mean of its divisors is an integer number (5866674121116).

Almost surely, 223312310323231 is an apocalyptic number.

23312310323231 is a deficient number, since it is larger than the sum of its proper divisors (154386161233).

23312310323231 is a wasteful number, since it uses less digits than its factorization.

23312310323231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154386161232.

The product of its (nonzero) digits is 11664, while the sum is 29.

Adding to 23312310323231 its reverse (13232301321332), we get a palindrome (36544611644563).

The spelling of 23312310323231 in words is "twenty-three trillion, three hundred twelve billion, three hundred ten million, three hundred twenty-three thousand, two hundred thirty-one".

Divisors: 1 151 154386161081 23312310323231