23321123431 has 4 divisors (see below), whose sum is σ = 24548551000. Its totient is φ = 22093695864.

The previous prime is 23321123407. The next prime is 23321123437. The reversal of 23321123431 is 13432112332.

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 23321123431 - 2⁹ = 23321122919 is a prime.

It is a super-2 number, since 2×23321123431² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23321123396 and 23321123405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23321123437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 613713756 + ... + 613713793.

It is an arithmetic number, because the mean of its divisors is an integer number (6137137750).

Almost surely, 2^23321123431 is an apocalyptic number.

23321123431 is a deficient number, since it is larger than the sum of its proper divisors (1227427569).

23321123431 is a wasteful number, since it uses less digits than its factorization.

23321123431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1227427568.

The product of its digits is 2592, while the sum is 25.

Adding to 23321123431 its reverse (13432112332), we get a palindrome (36753235763).

The spelling of 23321123431 in words is "twenty-three billion, three hundred twenty-one million, one hundred twenty-three thousand, four hundred thirty-one".