31105055386 has 16 divisors (see below), whose sum is σ = 47360183040. Its totient is φ = 15318388800.

The previous prime is 31105055369. The next prime is 31105055407. The reversal of 31105055386 is 68355050113.

It is a super-2 number, since 2×31105055386² (a number of 22 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, 1985986 + ... + 2001586.

It is an arithmetic number, because the mean of its divisors is an integer number (2960011440).

Almost surely, 2^31105055386 is an apocalyptic number.

31105055386 is a deficient number, since it is larger than the sum of its proper divisors (16255127654).

31105055386 is a wasteful number, since it uses less digits than its factorization.

31105055386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30549.

The product of its (nonzero) digits is 54000, while the sum is 37.

The spelling of 31105055386 in words is "thirty-one billion, one hundred five million, fifty-five thousand, three hundred eighty-six".