31233113210113 has 4 divisors (see below), whose sum is σ = 32310117113940. Its totient is φ = 30156109306288.

The previous prime is 31233113210083. The next prime is 31233113210177. The reversal of 31233113210113 is 31101231133213.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21308489996544 + 9924623213569 = 4616112^2 + 3150337^2 .

It is a cyclic number.

It is not a de Polignac number, because 31233113210113 - 2⁵ = 31233113210081 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31233113210713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 538501951870 + ... + 538501951927.

It is an arithmetic number, because the mean of its divisors is an integer number (8077529278485).

Almost surely, 2^{31233113210113} is an apocalyptic number.

It is an amenable number.

31233113210113 is a deficient number, since it is larger than the sum of its proper divisors (1077003903827).

31233113210113 is a wasteful number, since it uses less digits than its factorization.

31233113210113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1077003903826.

The product of its (nonzero) digits is 972, while the sum is 25.

Adding to 31233113210113 its reverse (31101231133213), we get a palindrome (62334344343326).

The spelling of 31233113210113 in words is "thirty-one trillion, two hundred thirty-three billion, one hundred thirteen million, two hundred ten thousand, one hundred thirteen".