31505103110653 has 16 divisors (see below), whose sum is σ = 31963788144640. Its totient is φ = 31049552323584.

The previous prime is 31505103110627. The next prime is 31505103110669. The reversal of 31505103110653 is 35601130150513.

It is a cyclic number.

It is not a de Polignac number, because 31505103110653 - 2⁹ = 31505103110141 is a prime.

It is a super-3 number, since 3×31505103110653³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31505103110603) 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, 140899300 + ... + 141122722.

It is an arithmetic number, because the mean of its divisors is an integer number (1997736759040).

Almost surely, 2^{31505103110653} is an apocalyptic number.

It is an amenable number.

31505103110653 is a deficient number, since it is larger than the sum of its proper divisors (458685033987).

31505103110653 is a wasteful number, since it uses less digits than its factorization.

31505103110653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 230428.

The product of its (nonzero) digits is 20250, while the sum is 34.

The spelling of 31505103110653 in words is "thirty-one trillion, five hundred five billion, one hundred three million, one hundred ten thousand, six hundred fifty-three".