31155311355113 has 16 divisors (see below), whose sum is σ = 33997274942400. Its totient is φ = 28314959270400.

The previous prime is 31155311355107. The next prime is 31155311355149.

31155311355113 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 31155311355113 - 2³² = 31151016387817 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31155311355173) 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, 1023181313 + ... + 1023211761.

It is an arithmetic number, because the mean of its divisors is an integer number (2124829683900).

Almost surely, 2^{31155311355113} is an apocalyptic number.

It is an amenable number.

31155311355113 is a deficient number, since it is larger than the sum of its proper divisors (2841963587287).

31155311355113 is a wasteful number, since it uses less digits than its factorization.

31155311355113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53848.

The product of its digits is 50625, while the sum is 38.

The spelling of 31155311355113 in words is "thirty-one trillion, one hundred fifty-five billion, three hundred eleven million, three hundred fifty-five thousand, one hundred thirteen".