31123310201113 has 16 divisors (see below), whose sum is σ = 34791906240000. Its totient is φ = 27647139651840.

The previous prime is 31123310201111. The next prime is 31123310201131. The reversal of 31123310201113 is 31110201332113.

It is a cyclic number.

It is not a de Polignac number, because 31123310201113 - 2¹ = 31123310201111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31123310201111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 215651488 + ... + 215795761.

It is an arithmetic number, because the mean of its divisors is an integer number (2174494140000).

Almost surely, 2^{31123310201113} is an apocalyptic number.

It is an amenable number.

31123310201113 is a deficient number, since it is larger than the sum of its proper divisors (3668596038887).

31123310201113 is a wasteful number, since it uses less digits than its factorization.

31123310201113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 431447472.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 31123310201113 its reverse (31110201332113), we get a palindrome (62233511533226).

The spelling of 31123310201113 in words is "thirty-one trillion, one hundred twenty-three billion, three hundred ten million, two hundred one thousand, one hundred thirteen".