31302023233312 has 96 divisors (see below), whose sum is σ = 67028429939184. Its totient is φ = 14302973952000.

The previous prime is 31302023233303. The next prime is 31302023233319. The reversal of 31302023233312 is 21333232020313.

It can be written as a sum of positive squares in 8 ways, for example, as 5111415592336 + 26190607640976 = 2260844^2 + 5117676^2 .

It is not an unprimeable number, because it can be changed into a prime (31302023233319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921688012 + ... + 921721972.

Almost surely, 2^{31302023233312} is an apocalyptic number.

31302023233312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31302023233312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33514214969592).

31302023233312 is an abundant number, since it is smaller than the sum of its proper divisors (35726406705872).

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

31302023233312 is a wasteful number, since it uses less digits than its factorization.

31302023233312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56022 (or 56014 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 31302023233312 its reverse (21333232020313), we get a palindrome (52635255253625).

The spelling of 31302023233312 in words is "thirty-one trillion, three hundred two billion, twenty-three million, two hundred thirty-three thousand, three hundred twelve".