31010020132 has 48 divisors (see below), whose sum is σ = 66823173760. Its totient is φ = 12261756672.

The previous prime is 31010020117. The next prime is 31010020133. The reversal of 31010020132 is 23102001013.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is not an unprimeable number, because it can be changed into a prime (31010020133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 773608 + ... + 812704.

Almost surely, 2^31010020132 is an apocalyptic number.

It is an amenable number.

31010020132 is an abundant number, since it is smaller than the sum of its proper divisors (35813153628).

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

31010020132 is a wasteful number, since it uses less digits than its factorization.

31010020132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41300 (or 41298 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31010020132 its reverse (23102001013), we get a palindrome (54112021145).

The spelling of 31010020132 in words is "thirty-one billion, ten million, twenty thousand, one hundred thirty-two".