23301311281 has 2 divisors, whose sum is σ = 23301311282. Its totient is φ = 23301311280.

The previous prime is 23301311221. The next prime is 23301311303. The reversal of 23301311281 is 18211310332.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11929008400 + 11372302881 = 109220^2 + 106641^2 .

It is a cyclic number.

It is not a de Polignac number, because 23301311281 - 2⁷ = 23301311153 is a prime.

It is a super-2 number, since 2×23301311281² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23301311221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11650655640 + 11650655641.

It is an arithmetic number, because the mean of its divisors is an integer number (11650655641).

Almost surely, 2^23301311281 is an apocalyptic number.

It is an amenable number.

23301311281 is a deficient number, since it is larger than the sum of its proper divisors (1).

23301311281 is an equidigital number, since it uses as much as digits as its factorization.

23301311281 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 23301311281 in words is "twenty-three billion, three hundred one million, three hundred eleven thousand, two hundred eighty-one".