31316422113 has 24 divisors (see below), whose sum is σ = 45536050560. Its totient is φ = 20738803680.

The previous prime is 31316422073. The next prime is 31316422121. The reversal of 31316422113 is 31122461313.

It is a happy number.

31316422113 is a `hidden beast` number, since 3 + 1 + 3 + 1 + 642 + 2 + 1 + 13 = 666.

It is not a de Polignac number, because 31316422113 - 2²² = 31312227809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31316422013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1908498 + ... + 1924836.

It is an arithmetic number, because the mean of its divisors is an integer number (1897335440).

Almost surely, 2^31316422113 is an apocalyptic number.

It is an amenable number.

31316422113 is a deficient number, since it is larger than the sum of its proper divisors (14219628447).

31316422113 is a wasteful number, since it uses less digits than its factorization.

31316422113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17749 (or 17746 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 31316422113 its reverse (31122461313), we get a palindrome (62438883426).

The spelling of 31316422113 in words is "thirty-one billion, three hundred sixteen million, four hundred twenty-two thousand, one hundred thirteen".