31231323022112 has 48 divisors (see below), whose sum is σ = 61859206936800. Its totient is φ = 15521130193920.

The previous prime is 31231323022087. The next prime is 31231323022117. The reversal of 31231323022112 is 21122032313213.

It is not an unprimeable number, because it can be changed into a prime (31231323022117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10927064 + ... + 13485672.

It is an arithmetic number, because the mean of its divisors is an integer number (1288733477850).

Almost surely, 2^{31231323022112} is an apocalyptic number.

31231323022112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31231323022112 is a deficient number, since it is larger than the sum of its proper divisors (30627883914688).

31231323022112 is a wasteful number, since it uses less digits than its factorization.

31231323022112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2560929 (or 2560921 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 31231323022112 its reverse (21122032313213), we get a palindrome (52353355335325).

The spelling of 31231323022112 in words is "thirty-one trillion, two hundred thirty-one billion, three hundred twenty-three million, twenty-two thousand, one hundred twelve".