23345306437 has 2 divisors, whose sum is σ = 23345306438. Its totient is φ = 23345306436.

The previous prime is 23345306419. The next prime is 23345306447. The reversal of 23345306437 is 73460354332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19546556481 + 3798749956 = 139809^2 + 61634^2 .

It is a cyclic number.

It is not a de Polignac number, because 23345306437 - 2²⁷ = 23211088709 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23345306437.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23345306417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11672653218 + 11672653219.

It is an arithmetic number, because the mean of its divisors is an integer number (11672653219).

Almost surely, 2^23345306437 is an apocalyptic number.

It is an amenable number.

23345306437 is a deficient number, since it is larger than the sum of its proper divisors (1).

23345306437 is an equidigital number, since it uses as much as digits as its factorization.

23345306437 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 40.

The spelling of 23345306437 in words is "twenty-three billion, three hundred forty-five million, three hundred six thousand, four hundred thirty-seven".