31321246113 has 12 divisors (see below), whose sum is σ = 45786882960. Its totient is φ = 20629253976.

The previous prime is 31321246067. The next prime is 31321246123. The reversal of 31321246113 is 31164212313.

It is a happy number.

31321246113 is a `hidden beast` number, since 3 + 1 + 3 + 21 + 24 + 611 + 3 = 666.

It is not a de Polignac number, because 31321246113 - 2⁶ = 31321246049 is a prime.

It is a super-2 number, since 2×31321246113² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31321246123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20963943 + ... + 20965436.

It is an arithmetic number, because the mean of its divisors is an integer number (3815573580).

Almost surely, 2^31321246113 is an apocalyptic number.

It is an amenable number.

31321246113 is a deficient number, since it is larger than the sum of its proper divisors (14465636847).

31321246113 is a wasteful number, since it uses less digits than its factorization.

31321246113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41929468 (or 41929465 counting only the distinct ones).

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

Adding to 31321246113 its reverse (31164212313), we get a palindrome (62485458426).

The spelling of 31321246113 in words is "thirty-one billion, three hundred twenty-one million, two hundred forty-six thousand, one hundred thirteen".