23037438881 has 2 divisors, whose sum is σ = 23037438882. Its totient is φ = 23037438880.

The previous prime is 23037438863. The next prime is 23037438887. The reversal of 23037438881 is 18883473032.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 14298180625 + 8739258256 = 119575^2 + 93484^2 .

It is a cyclic number.

It is not a de Polignac number, because 23037438881 - 2¹⁸ = 23037176737 is a prime.

It is a super-2 number, since 2×23037438881² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23037438887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11518719440 + 11518719441.

It is an arithmetic number, because the mean of its divisors is an integer number (11518719441).

Almost surely, 2^23037438881 is an apocalyptic number.

It is an amenable number.

23037438881 is a deficient number, since it is larger than the sum of its proper divisors (1).

23037438881 is an equidigital number, since it uses as much as digits as its factorization.

23037438881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 23037438881 in words is "twenty-three billion, thirty-seven million, four hundred thirty-eight thousand, eight hundred eighty-one".