31113002102 has 32 divisors (see below), whose sum is σ = 57690292800. Its totient is φ = 12254675328.

The previous prime is 31113002057. The next prime is 31113002111. The reversal of 31113002102 is 20120031113.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

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, 331577 + ... + 414932.

It is an arithmetic number, because the mean of its divisors is an integer number (1802821650).

Almost surely, 2^31113002102 is an apocalyptic number.

31113002102 is a deficient number, since it is larger than the sum of its proper divisors (26577290698).

31113002102 is a wasteful number, since it uses less digits than its factorization.

31113002102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 746760.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 31113002102 its reverse (20120031113), we get a palindrome (51233033215).

The spelling of 31113002102 in words is "thirty-one billion, one hundred thirteen million, two thousand, one hundred two".