23732373281 has 2 divisors, whose sum is σ = 23732373282. Its totient is φ = 23732373280.

The previous prime is 23732373257. The next prime is 23732373283. The reversal of 23732373281 is 18237323732.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20925069025 + 2807304256 = 144655^2 + 52984^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23732373281 is a prime.

It is a super-2 number, since 2×23732373281² (a number of 22 digits) contains 22 as substring.

Together with 23732373283, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (23732373283) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11866186640 + 11866186641.

It is an arithmetic number, because the mean of its divisors is an integer number (11866186641).

Almost surely, 2^23732373281 is an apocalyptic number.

It is an amenable number.

23732373281 is a deficient number, since it is larger than the sum of its proper divisors (1).

23732373281 is an equidigital number, since it uses as much as digits as its factorization.

23732373281 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 41.

The spelling of 23732373281 in words is "twenty-three billion, seven hundred thirty-two million, three hundred seventy-three thousand, two hundred eighty-one".