23252015521081 has 2 divisors, whose sum is σ = 23252015521082. Its totient is φ = 23252015521080.

The previous prime is 23252015521061. The next prime is 23252015521201. The reversal of 23252015521081 is 18012551025232.

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., 22496845831056 + 755169690025 = 4743084^2 + 869005^2 .

It is a cyclic number.

It is not a de Polignac number, because 23252015521081 - 2¹⁵ = 23252015488313 is a prime.

It is a super-2 number, since 2×23252015521081² (a number of 28 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 23252015521081.

It is not a weakly prime, because it can be changed into another prime (23252015521051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11626007760540 + 11626007760541.

It is an arithmetic number, because the mean of its divisors is an integer number (11626007760541).

Almost surely, 2^{23252015521081} is an apocalyptic number.

It is an amenable number.

23252015521081 is a deficient number, since it is larger than the sum of its proper divisors (1).

23252015521081 is an equidigital number, since it uses as much as digits as its factorization.

23252015521081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48000, while the sum is 37.

The spelling of 23252015521081 in words is "twenty-three trillion, two hundred fifty-two billion, fifteen million, five hundred twenty-one thousand, eighty-one".