31311132210132 has 24 divisors (see below), whose sum is σ = 73060848202272. Its totient is φ = 10436824111200.

The previous prime is 31311132210079. The next prime is 31311132210133. The reversal of 31311132210132 is 23101223111313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311132210133) 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, 26901219 + ... + 28041002.

It is an arithmetic number, because the mean of its divisors is an integer number (3044202008428).

Almost surely, 2^{31311132210132} is an apocalyptic number.

It is an amenable number.

31311132210132 is an abundant number, since it is smaller than the sum of its proper divisors (41749715992140).

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

31311132210132 is a wasteful number, since it uses less digits than its factorization.

31311132210132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54989719 (or 54989717 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 31311132210132 its reverse (23101223111313), we get a palindrome (54412355321445).

The spelling of 31311132210132 in words is "thirty-one trillion, three hundred eleven billion, one hundred thirty-two million, two hundred ten thousand, one hundred thirty-two".