31102113302013 has 16 divisors (see below), whose sum is σ = 47286470903616. Its totient is φ = 18013893676800.

The previous prime is 31102113301967. The next prime is 31102113302021. The reversal of 31102113302013 is 31020331120113.

It is a happy number.

It is not a de Polignac number, because 31102113302013 - 2¹³ = 31102113293821 is a prime.

It is a super-3 number, since 3×31102113302013³ (a number of 41 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31102113302083) 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, 23455590063 + ... + 23455591388.

It is an arithmetic number, because the mean of its divisors is an integer number (2955404431476).

Almost surely, 2^{31102113302013} is an apocalyptic number.

It is an amenable number.

31102113302013 is a deficient number, since it is larger than the sum of its proper divisors (16184357601603).

31102113302013 is a wasteful number, since it uses less digits than its factorization.

31102113302013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46911181484.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31102113302013 its reverse (31020331120113), we get a palindrome (62122444422126).

The spelling of 31102113302013 in words is "thirty-one trillion, one hundred two billion, one hundred thirteen million, three hundred two thousand, thirteen".