20312102023 has 4 divisors (see below), whose sum is σ = 20312934408. Its totient is φ = 20311269640.

The previous prime is 20312102017. The next prime is 20312102039. The reversal of 20312102023 is 32020121302.

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 20312102023 - 2¹⁷ = 20311970951 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20312101988 and 20312102006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312102423) 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, 378448 + ... + 428773.

It is an arithmetic number, because the mean of its divisors is an integer number (5078233602).

Almost surely, 2^20312102023 is an apocalyptic number.

20312102023 is a deficient number, since it is larger than the sum of its proper divisors (832385).

20312102023 is an equidigital number, since it uses as much as digits as its factorization.

20312102023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 832384.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20312102023 its reverse (32020121302), we get a palindrome (52332223325).

The spelling of 20312102023 in words is "twenty billion, three hundred twelve million, one hundred two thousand, twenty-three".