23723447831 has 2 divisors, whose sum is σ = 23723447832. Its totient is φ = 23723447830.

The previous prime is 23723447711. The next prime is 23723447833. The reversal of 23723447831 is 13874432732.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23723447831 - 2²² = 23719253527 is a prime.

It is a super-2 number, since 2×23723447831² (a number of 22 digits) contains 22 as substring.

Together with 23723447833, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23723447833) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11861723915 + 11861723916.

It is an arithmetic number, because the mean of its divisors is an integer number (11861723916).

Almost surely, 2^23723447831 is an apocalyptic number.

23723447831 is a deficient number, since it is larger than the sum of its proper divisors (1).

23723447831 is an equidigital number, since it uses as much as digits as its factorization.

23723447831 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 677376, while the sum is 44.

The spelling of 23723447831 in words is "twenty-three billion, seven hundred twenty-three million, four hundred forty-seven thousand, eight hundred thirty-one".