2031310223123 has 4 divisors (see below), whose sum is σ = 2031340839768. Its totient is φ = 2031279606480.

The previous prime is 2031310223093. The next prime is 2031310223149. The reversal of 2031310223123 is 3213220131302.

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 2031310223123 - 2²⁶ = 2031243114259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2031310223623) 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, 15208586 + ... + 15341567.

It is an arithmetic number, because the mean of its divisors is an integer number (507835209942).

Almost surely, 2^{2031310223123} is an apocalyptic number.

2031310223123 is a deficient number, since it is larger than the sum of its proper divisors (30616645).

2031310223123 is an equidigital number, since it uses as much as digits as its factorization.

2031310223123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30616644.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 2031310223123 its reverse (3213220131302), we get a palindrome (5244530354425).

The spelling of 2031310223123 in words is "two trillion, thirty-one billion, three hundred ten million, two hundred twenty-three thousand, one hundred twenty-three".