31033402000131 has 16 divisors (see below), whose sum is σ = 42079701755520. Its totient is φ = 20338026999360.

The previous prime is 31033402000123. The next prime is 31033402000147. The reversal of 31033402000131 is 13100020433013.

It is not a de Polignac number, because 31033402000131 - 2³ = 31033402000123 is a prime.

It is a super-2 number, since 2×31033402000131² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31033402000098 and 31033402000107.

It is not an unprimeable number, because it can be changed into a prime (31033402001131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14110636 + ... + 16160966.

It is an arithmetic number, because the mean of its divisors is an integer number (2629981359720).

Almost surely, 2^{31033402000131} is an apocalyptic number.

31033402000131 is a deficient number, since it is larger than the sum of its proper divisors (11046299755389).

31033402000131 is a wasteful number, since it uses less digits than its factorization.

31033402000131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2135906.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31033402000131 its reverse (13100020433013), we get a palindrome (44133422433144).

The spelling of 31033402000131 in words is "thirty-one trillion, thirty-three billion, four hundred two million, one hundred thirty-one", and thus it is an aban number.