31003131133002 has 64 divisors (see below), whose sum is σ = 75454445260800. Its totient is φ = 8472905389872.

The previous prime is 31003131133001. The next prime is 31003131133033. The reversal of 31003131133002 is 20033113130013.

It is a super-2 number, since 2×31003131133002² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 31003131133002.

It is not an unprimeable number, because it can be changed into a prime (31003131133001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327445918 + ... + 327540585.

It is an arithmetic number, because the mean of its divisors is an integer number (1178975707200).

Almost surely, 2^{31003131133002} is an apocalyptic number.

31003131133002 is an abundant number, since it is smaller than the sum of its proper divisors (44451314127798).

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

31003131133002 is a wasteful number, since it uses less digits than its factorization.

31003131133002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 654986552 (or 654986538 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 31003131133002 its reverse (20033113130013), we get a palindrome (51036244263015).

The spelling of 31003131133002 in words is "thirty-one trillion, three billion, one hundred thirty-one million, one hundred thirty-three thousand, two".