23531216783 has 2 divisors, whose sum is σ = 23531216784. Its totient is φ = 23531216782.

The previous prime is 23531216777. The next prime is 23531216803. The reversal of 23531216783 is 38761213532.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23531216783 - 2⁶ = 23531216719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23531216783.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23537216783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11765608391 + 11765608392.

It is an arithmetic number, because the mean of its divisors is an integer number (11765608392).

Almost surely, 2^23531216783 is an apocalyptic number.

23531216783 is a deficient number, since it is larger than the sum of its proper divisors (1).

23531216783 is an equidigital number, since it uses as much as digits as its factorization.

23531216783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 181440, while the sum is 41.

The spelling of 23531216783 in words is "twenty-three billion, five hundred thirty-one million, two hundred sixteen thousand, seven hundred eighty-three".