31121133130995 has 8 divisors (see below), whose sum is σ = 49793813009616. Its totient is φ = 16597937669856.

The previous prime is 31121133130987. The next prime is 31121133131009. The reversal of 31121133130995 is 59903133112113.

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

It is not a de Polignac number, because 31121133130995 - 2³ = 31121133130987 is a prime.

It is a super-2 number, since 2×31121133130995² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1037371104352 + ... + 1037371104381.

It is an arithmetic number, because the mean of its divisors is an integer number (6224226626202).

Almost surely, 2^{31121133130995} is an apocalyptic number.

31121133130995 is a deficient number, since it is larger than the sum of its proper divisors (18672679878621).

31121133130995 is a wasteful number, since it uses less digits than its factorization.

31121133130995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2074742208741.

The product of its (nonzero) digits is 65610, while the sum is 42.

The spelling of 31121133130995 in words is "thirty-one trillion, one hundred twenty-one billion, one hundred thirty-three million, one hundred thirty thousand, nine hundred ninety-five".