31163898131 has 8 divisors (see below), whose sum is σ = 31964403504. Its totient is φ = 30366836640.

The previous prime is 31163898091. The next prime is 31163898137. The reversal of 31163898131 is 13189836113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31163898131 - 2¹⁴ = 31163881747 is a prime.

It is a super-2 number, since 2×31163898131² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31163898137) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 842636 + ... + 878841.

It is an arithmetic number, because the mean of its divisors is an integer number (3995550438).

Almost surely, 2^31163898131 is an apocalyptic number.

31163898131 is a deficient number, since it is larger than the sum of its proper divisors (800505373).

31163898131 is a wasteful number, since it uses less digits than its factorization.

31163898131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1721941.

The product of its digits is 93312, while the sum is 44.

The spelling of 31163898131 in words is "thirty-one billion, one hundred sixty-three million, eight hundred ninety-eight thousand, one hundred thirty-one".