31011622113 has 16 divisors (see below), whose sum is σ = 42507395840. Its totient is φ = 20096211456.

The previous prime is 31011622111. The next prime is 31011622121. The reversal of 31011622113 is 31122611013.

It is not a de Polignac number, because 31011622113 - 2¹ = 31011622111 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31011622113.

It is not an unprimeable number, because it can be changed into a prime (31011622111) 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, 19120 + ... + 249777.

It is an arithmetic number, because the mean of its divisors is an integer number (2656712240).

Almost surely, 2^31011622113 is an apocalyptic number.

It is an amenable number.

31011622113 is a deficient number, since it is larger than the sum of its proper divisors (11495773727).

31011622113 is a wasteful number, since it uses less digits than its factorization.

31011622113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269976.

The product of its (nonzero) digits is 216, while the sum is 21.

The spelling of 31011622113 in words is "thirty-one billion, eleven million, six hundred twenty-two thousand, one hundred thirteen".