23312020231 has 4 divisors (see below), whose sum is σ = 24325586352. Its totient is φ = 22298454112.

The previous prime is 23312020229. The next prime is 23312020261. The reversal of 23312020231 is 13202021332.

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 23312020231 - 2¹ = 23312020229 is a prime.

It is a super-2 number, since 2×23312020231² (a number of 22 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 = 23312020199 and 23312020208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23312020261) 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, 506783026 + ... + 506783071.

It is an arithmetic number, because the mean of its divisors is an integer number (6081396588).

Almost surely, 2^23312020231 is an apocalyptic number.

23312020231 is a deficient number, since it is larger than the sum of its proper divisors (1013566121).

23312020231 is a wasteful number, since it uses less digits than its factorization.

23312020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013566120.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23312020231 its reverse (13202021332), we get a palindrome (36514041563).

The spelling of 23312020231 in words is "twenty-three billion, three hundred twelve million, twenty thousand, two hundred thirty-one".