23101232281 has 2 divisors, whose sum is σ = 23101232282. Its totient is φ = 23101232280.

The previous prime is 23101232257. The next prime is 23101232317. The reversal of 23101232281 is 18223210132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12317448256 + 10783784025 = 110984^2 + 103845^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23101232281 is a prime.

It is a super-2 number, since 2×23101232281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23101236281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11550616140 + 11550616141.

It is an arithmetic number, because the mean of its divisors is an integer number (11550616141).

Almost surely, 2^23101232281 is an apocalyptic number.

It is an amenable number.

23101232281 is a deficient number, since it is larger than the sum of its proper divisors (1).

23101232281 is an equidigital number, since it uses as much as digits as its factorization.

23101232281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 23101232281 in words is "twenty-three billion, one hundred one million, two hundred thirty-two thousand, two hundred eighty-one".