31103330132013 has 4 divisors (see below), whose sum is σ = 41471106842688. Its totient is φ = 20735553421340.

The previous prime is 31103330132003. The next prime is 31103330132053. The reversal of 31103330132013 is 31023103330113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31103330132013 - 2¹² = 31103330127917 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31103330132003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5183888355333 + ... + 5183888355338.

It is an arithmetic number, because the mean of its divisors is an integer number (10367776710672).

Almost surely, 2^{31103330132013} is an apocalyptic number.

It is an amenable number.

31103330132013 is a deficient number, since it is larger than the sum of its proper divisors (10367776710675).

31103330132013 is a wasteful number, since it uses less digits than its factorization.

31103330132013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10367776710674.

The product of its (nonzero) digits is 1458, while the sum is 24.

Adding to 31103330132013 its reverse (31023103330113), we get a palindrome (62126433462126).

The spelling of 31103330132013 in words is "thirty-one trillion, one hundred three billion, three hundred thirty million, one hundred thirty-two thousand, thirteen".