1002111331131 has 24 divisors (see below), whose sum is σ = 1455993139536. Its totient is φ = 664152310080.

The previous prime is 1002111331127. The next prime is 1002111331139. The reversal of 1002111331131 is 1311331112001.

1002111331131 is a `hidden beast` number, since 100 + 211 + 13 + 311 + 31 = 666.

It is not a de Polignac number, because 1002111331131 - 2² = 1002111331127 is a prime.

It is a super-2 number, since 2×1002111331131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1002111331139) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22976661 + ... + 23020233.

It is an arithmetic number, because the mean of its divisors is an integer number (60666380814).

Almost surely, 2^{1002111331131} is an apocalyptic number.

1002111331131 is a deficient number, since it is larger than the sum of its proper divisors (453881808405).

1002111331131 is a wasteful number, since it uses less digits than its factorization.

1002111331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 58523 (or 58520 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 1002111331131 its reverse (1311331112001), we get a palindrome (2313442443132).

The spelling of 1002111331131 in words is "one trillion, two billion, one hundred eleven million, three hundred thirty-one thousand, one hundred thirty-one".