23001240281 has 2 divisors, whose sum is σ = 23001240282. Its totient is φ = 23001240280.

The previous prime is 23001240257. The next prime is 23001240307. The reversal of 23001240281 is 18204210032.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 21337905625 + 1663334656 = 146075^2 + 40784^2 .

It is a cyclic number.

It is not a de Polignac number, because 23001240281 - 2²⁶ = 22934131417 is a prime.

It is a super-2 number, since 2×23001240281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23001249281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11500620140 + 11500620141.

It is an arithmetic number, because the mean of its divisors is an integer number (11500620141).

Almost surely, 2^23001240281 is an apocalyptic number.

It is an amenable number.

23001240281 is a deficient number, since it is larger than the sum of its proper divisors (1).

23001240281 is an equidigital number, since it uses as much as digits as its factorization.

23001240281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

The spelling of 23001240281 in words is "twenty-three billion, one million, two hundred forty thousand, two hundred eighty-one".