31233020132 has 24 divisors (see below), whose sum is σ = 55441132992. Its totient is φ = 15392804000.

The previous prime is 31233020111. The next prime is 31233020153. The reversal of 31233020132 is 23102033213.

It is an interprime number because it is at equal distance from previous prime (31233020111) and next prime (31233020153).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1423598 + ... + 1445370.

It is an arithmetic number, because the mean of its divisors is an integer number (2310047208).

Almost surely, 2^31233020132 is an apocalyptic number.

It is an amenable number.

31233020132 is a deficient number, since it is larger than the sum of its proper divisors (24208112860).

31233020132 is a wasteful number, since it uses less digits than its factorization.

31233020132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26899 (or 26897 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31233020132 its reverse (23102033213), we get a palindrome (54335053345).

The spelling of 31233020132 in words is "thirty-one billion, two hundred thirty-three million, twenty thousand, one hundred thirty-two".