20312323241023 has 16 divisors (see below), whose sum is σ = 22211281886976. Its totient is φ = 18422099879040.

The previous prime is 20312323241009. The next prime is 20312323241057. The reversal of 20312323241023 is 32014232321302.

It is not a de Polignac number, because 20312323241023 - 2⁵ = 20312323240991 is a prime.

It is a super-2 number, since 2×20312323241023² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20312323240982 and 20312323241000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312323241423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95739886 + ... + 95951812.

It is an arithmetic number, because the mean of its divisors is an integer number (1388205117936).

Almost surely, 2^{20312323241023} is an apocalyptic number.

20312323241023 is a deficient number, since it is larger than the sum of its proper divisors (1898958645953).

20312323241023 is a wasteful number, since it uses less digits than its factorization.

20312323241023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232494.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 20312323241023 its reverse (32014232321302), we get a palindrome (52326555562325).

The spelling of 20312323241023 in words is "twenty trillion, three hundred twelve billion, three hundred twenty-three million, two hundred forty-one thousand, twenty-three".