23051155681 has 2 divisors, whose sum is σ = 23051155682. Its totient is φ = 23051155680.

The previous prime is 23051155667. The next prime is 23051155723. The reversal of 23051155681 is 18655115032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22315878225 + 735277456 = 149385^2 + 27116^2 .

It is a cyclic number.

It is not a de Polignac number, because 23051155681 - 2¹³ = 23051147489 is a prime.

It is a super-2 number, since 2×23051155681² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23051155681.

It is not a weakly prime, because it can be changed into another prime (23051155081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11525577840 + 11525577841.

It is an arithmetic number, because the mean of its divisors is an integer number (11525577841).

Almost surely, 2^23051155681 is an apocalyptic number.

It is an amenable number.

23051155681 is a deficient number, since it is larger than the sum of its proper divisors (1).

23051155681 is an equidigital number, since it uses as much as digits as its factorization.

23051155681 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36000, while the sum is 37.

The spelling of 23051155681 in words is "twenty-three billion, fifty-one million, one hundred fifty-five thousand, six hundred eighty-one".