23404342331 has 4 divisors (see below), whose sum is σ = 23413055232. Its totient is φ = 23395629432.

The previous prime is 23404342307. The next prime is 23404342343. The reversal of 23404342331 is 13324340432.

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 23404342331 - 2¹⁰ = 23404341307 is a prime.

It is a super-2 number, since 2×23404342331² (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 = 23404342294 and 23404342303.

It is not an unprimeable number, because it can be changed into a prime (23404342931) 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, 4352420 + ... + 4357793.

It is an arithmetic number, because the mean of its divisors is an integer number (5853263808).

Almost surely, 2^23404342331 is an apocalyptic number.

23404342331 is a deficient number, since it is larger than the sum of its proper divisors (8712901).

23404342331 is an equidigital number, since it uses as much as digits as its factorization.

23404342331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8712900.

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 23404342331 its reverse (13324340432), we get a palindrome (36728682763).

The spelling of 23404342331 in words is "twenty-three billion, four hundred four million, three hundred forty-two thousand, three hundred thirty-one".