31313113101 has 12 divisors (see below), whose sum is σ = 45232655520. Its totient is φ = 20874207240.

The previous prime is 31313112979. The next prime is 31313113141. The reversal of 31313113101 is 10131131313.

31313113101 is a `hidden beast` number, since 31 + 313 + 11 + 310 + 1 = 666.

It is not a de Polignac number, because 31313113101 - 2¹⁵ = 31313080333 is a prime.

It is a super-2 number, since 2×31313113101² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31313113141) 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, 82456 + ... + 263486.

It is an arithmetic number, because the mean of its divisors is an integer number (3769387960).

Almost surely, 2^31313113101 is an apocalyptic number.

It is an amenable number.

31313113101 is a deficient number, since it is larger than the sum of its proper divisors (13919542419).

31313113101 is a wasteful number, since it uses less digits than its factorization.

31313113101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200256 (or 200253 counting only the distinct ones).

The product of its (nonzero) digits is 81, while the sum is 18.

Adding to 31313113101 its reverse (10131131313), we get a palindrome (41444244414).

The spelling of 31313113101 in words is "thirty-one billion, three hundred thirteen million, one hundred thirteen thousand, one hundred one".