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31023320312124 = 22337487770310939
BaseRepresentation
bin1110000110111001011011…
…11111001010100100111100
311001211210121112101210012000
413003130231333022210330
513031241224444441444
6145551525552542300
76351234540463350
oct703345577124474
9131753545353160
1031023320312124
119980a095a3678
12359063b251990
131440642c5723a
14793772a61460
1538bec3a22469
hex1c372dfca93c

31023320312124 has 192 divisors, whose sum is σ = 92130077491200. Its totient is φ = 8843648112576.

The previous prime is 31023320312107. The next prime is 31023320312129. The reversal of 31023320312124 is 42121302332013.

31023320312124 is a `hidden beast` number, since 3 + 1 + 0 + 2 + 3 + 320 + 312 + 1 + 24 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31023320312129) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2836023447 + ... + 2836034385.

It is an arithmetic number, because the mean of its divisors is an integer number (479844153600).

Almost surely, 231023320312124 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31023320312124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46065038745600).

31023320312124 is an abundant number, since it is smaller than the sum of its proper divisors (61106757179076).

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

31023320312124 is a wasteful number, since it uses less digits than its factorization.

31023320312124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19149 (or 19141 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 31023320312124 its reverse (42121302332013), we get a palindrome (73144622644137).

The spelling of 31023320312124 in words is "thirty-one trillion, twenty-three billion, three hundred twenty million, three hundred twelve thousand, one hundred twenty-four".