31023321212032 has 32 divisors (see below), whose sum is σ = 61842027740220. Its totient is φ = 15502184838144.

The previous prime is 31023321212027. The next prime is 31023321212033. The reversal of 31023321212032 is 23021212332013.

It can be written as a sum of positive squares in 2 ways, for example, as 30864069135936 + 159252076096 = 5555544^2 + 399064^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 31023321211988 and 31023321212006.

It is not an unprimeable number, because it can be changed into a prime (31023321212033) 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, 73819083 + ... + 74238154.

Almost surely, 2^{31023321212032} is an apocalyptic number.

31023321212032 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31023321212032 is a deficient number, since it is larger than the sum of its proper divisors (30818706528188).

31023321212032 is a wasteful number, since it uses less digits than its factorization.

31023321212032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148058888 (or 148058876 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31023321212032 its reverse (23021212332013), we get a palindrome (54044533544045).

The spelling of 31023321212032 in words is "thirty-one trillion, twenty-three billion, three hundred twenty-one million, two hundred twelve thousand, thirty-two".