31120003321113 has 32 divisors (see below), whose sum is σ = 49085592284160. Its totient is φ = 17159356710720.

The previous prime is 31120003321097. The next prime is 31120003321129. The reversal of 31120003321113 is 31112330002113.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31120003321097) and next prime (31120003321129).

It is not a de Polignac number, because 31120003321113 - 2⁴ = 31120003321097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 31120003321113.

It is not an unprimeable number, because it can be changed into a prime (31120003321193) 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 31 ways as a sum of consecutive naturals, for example, 14311783 + ... + 16342188.

It is an arithmetic number, because the mean of its divisors is an integer number (1533924758880).

Almost surely, 2^{31120003321113} is an apocalyptic number.

It is an amenable number.

31120003321113 is a deficient number, since it is larger than the sum of its proper divisors (17965588963047).

31120003321113 is a wasteful number, since it uses less digits than its factorization.

31120003321113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30655677.

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

Adding to 31120003321113 its reverse (31112330002113), we get a palindrome (62232333323226).

The spelling of 31120003321113 in words is "thirty-one trillion, one hundred twenty billion, three million, three hundred twenty-one thousand, one hundred thirteen".