31020002013132 has 36 divisors (see below), whose sum is σ = 85540005552456. Its totient is φ = 9400000609920.

The previous prime is 31020002013131. The next prime is 31020002013263. The reversal of 31020002013132 is 23131020002013.

31020002013132 is a `hidden beast` number, since 310 + 20 + 0 + 0 + 20 + 1 + 313 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (31020002013131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 39166668813 + ... + 39166669604.

It is an arithmetic number, because the mean of its divisors is an integer number (2376111265346).

Almost surely, 2^{31020002013132} is an apocalyptic number.

It is an amenable number.

31020002013132 is an abundant number, since it is smaller than the sum of its proper divisors (54520003539324).

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

31020002013132 is a wasteful number, since it uses less digits than its factorization.

31020002013132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78333338438 (or 78333338433 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 31020002013132 its reverse (23131020002013), we get a palindrome (54151022015145).

The spelling of 31020002013132 in words is "thirty-one trillion, twenty billion, two million, thirteen thousand, one hundred thirty-two".