31311301330103 has 16 divisors (see below), whose sum is σ = 32041823616000. Its totient is φ = 30590711342880.

The previous prime is 31311301330079. The next prime is 31311301330129. The reversal of 31311301330103 is 30103310311313.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31311301330103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311301330403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1961333 + ... + 8152878.

It is an arithmetic number, because the mean of its divisors is an integer number (2002613976000).

Almost surely, 2^{31311301330103} is an apocalyptic number.

31311301330103 is a deficient number, since it is larger than the sum of its proper divisors (730522285897).

31311301330103 is a wasteful number, since it uses less digits than its factorization.

31311301330103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10114702.

The product of its (nonzero) digits is 729, while the sum is 23.

Adding to 31311301330103 its reverse (30103310311313), we get a palindrome (61414611641416).

The spelling of 31311301330103 in words is "thirty-one trillion, three hundred eleven billion, three hundred one million, three hundred thirty thousand, one hundred three".