23021434231 has 4 divisors (see below), whose sum is σ = 23187056200. Its totient is φ = 22855812264.

The previous prime is 23021434217. The next prime is 23021434273. The reversal of 23021434231 is 13243412032.

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 23021434231 - 2¹¹ = 23021432183 is a prime.

It is a super-2 number, since 2×23021434231² (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 = 23021434196 and 23021434205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23021414231) 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, 82810776 + ... + 82811053.

It is an arithmetic number, because the mean of its divisors is an integer number (5796764050).

Almost surely, 2^23021434231 is an apocalyptic number.

23021434231 is a deficient number, since it is larger than the sum of its proper divisors (165621969).

23021434231 is a wasteful number, since it uses less digits than its factorization.

23021434231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165621968.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 23021434231 its reverse (13243412032), we get a palindrome (36264846263).

The spelling of 23021434231 in words is "twenty-three billion, twenty-one million, four hundred thirty-four thousand, two hundred thirty-one".