31310010103 has 4 divisors (see below), whose sum is σ = 32073668928. Its totient is φ = 30546351280.

The previous prime is 31310010097. The next prime is 31310010131. The reversal of 31310010103 is 30101001313.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 31310010103 - 2²⁵ = 31276455671 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31310010133) 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, 381829351 + ... + 381829432.

It is an arithmetic number, because the mean of its divisors is an integer number (8018417232).

Almost surely, 2^31310010103 is an apocalyptic number.

31310010103 is a deficient number, since it is larger than the sum of its proper divisors (763658825).

31310010103 is an equidigital number, since it uses as much as digits as its factorization.

31310010103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763658824.

The product of its (nonzero) digits is 27, while the sum is 13.

Adding to 31310010103 its reverse (30101001313), we get a palindrome (61411011416).

The spelling of 31310010103 in words is "thirty-one billion, three hundred ten million, ten thousand, one hundred three".