31020002033130 has 128 divisors (see below), whose sum is σ = 90246329107200. Its totient is φ = 7519473561600.

The previous prime is 31020002033129. The next prime is 31020002033159. The reversal of 31020002033130 is 3133020002013.

31020002033130 is a `hidden beast` number, since 310 + 2 + 0 + 0 + 0 + 20 + 331 + 3 + 0 = 666.

It is a super-2 number, since 2×31020002033130² (a number of 28 digits) contains 22 as substring.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 42887526 + ... + 43604814.

It is an arithmetic number, because the mean of its divisors is an integer number (705049446150).

Almost surely, 2^{31020002033130} is an apocalyptic number.

31020002033130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31020002033130 is an abundant number, since it is smaller than the sum of its proper divisors (59226327074070).

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

31020002033130 is a wasteful number, since it uses less digits than its factorization.

31020002033130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731877 (or 731871 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31020002033130 its reverse (3133020002013), we get a palindrome (34153022035143).

The spelling of 31020002033130 in words is "thirty-one trillion, twenty billion, two million, thirty-three thousand, one hundred thirty".