31030000013133 has 48 divisors (see below), whose sum is σ = 51033400367040. Its totient is φ = 18001199174400.

The previous prime is 31030000013107. The next prime is 31030000013143. The reversal of 31030000013133 is 33131000003013.

It is not a de Polignac number, because 31030000013133 - 2⁵ = 31030000013101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31030000013143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 71905063 + ... + 72335316.

It is an arithmetic number, because the mean of its divisors is an integer number (1063195840980).

Almost surely, 2^{31030000013133} is an apocalyptic number.

31030000013133 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

It is an amenable number.

31030000013133 is a deficient number, since it is larger than the sum of its proper divisors (20003400353907).

31030000013133 is a wasteful number, since it uses less digits than its factorization.

31030000013133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144240490 (or 144240487 counting only the distinct ones).

The product of its (nonzero) digits is 243, while the sum is 18.

Adding to 31030000013133 its reverse (33131000003013), we get a palindrome (64161000016146).

The spelling of 31030000013133 in words is "thirty-one trillion, thirty billion, thirteen thousand, one hundred thirty-three".