31013331312103 has 8 divisors (see below), whose sum is σ = 35787921847808. Its totient is φ = 26324769434904.

The previous prime is 31013331312101. The next prime is 31013331312109. The reversal of 31013331312103 is 30121313331013.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31013331312103 - 2¹ = 31013331312101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31013331312101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21507163851 + ... + 21507165292.

It is an arithmetic number, because the mean of its divisors is an integer number (4473490230976).

Almost surely, 2^{31013331312103} is an apocalyptic number.

31013331312103 is a deficient number, since it is larger than the sum of its proper divisors (4774590535705).

31013331312103 is a wasteful number, since it uses less digits than its factorization.

31013331312103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43014329253.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 31013331312103 its reverse (30121313331013), we get a palindrome (61134644643116).

The spelling of 31013331312103 in words is "thirty-one trillion, thirteen billion, three hundred thirty-one million, three hundred twelve thousand, one hundred three".