10311121321023 has 4 divisors (see below), whose sum is σ = 13748161761368. Its totient is φ = 6874080880680.

The previous prime is 10311121321003. The next prime is 10311121321057. The reversal of 10311121321023 is 32012312111301.

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

It is not a de Polignac number, because 10311121321023 - 2⁶ = 10311121320959 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 (10311121321003) 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, 1718520220168 + ... + 1718520220173.

It is an arithmetic number, because the mean of its divisors is an integer number (3437040440342).

Almost surely, 2^{10311121321023} is an apocalyptic number.

10311121321023 is a deficient number, since it is larger than the sum of its proper divisors (3437040440345).

10311121321023 is an equidigital number, since it uses as much as digits as its factorization.

10311121321023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3437040440344.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 10311121321023 its reverse (32012312111301), we get a palindrome (42323433432324).

The spelling of 10311121321023 in words is "ten trillion, three hundred eleven billion, one hundred twenty-one million, three hundred twenty-one thousand, twenty-three".