23115046611721 has 27 divisors (see below), whose sum is σ = 23557833071253. Its totient is φ = 22680559923840.

The previous prime is 23115046611697. The next prime is 23115046611733. The reversal of 23115046611721 is 12711664051132.

The square root of 23115046611721 is 4807811.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 13402474361721 + 9712572250000 = 3660939^2 + 3116500^2 .

It is not a de Polignac number, because 23115046611721 - 2³¹ = 23112899128073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23115046911721) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 85295374816 + ... + 85295375086.

Almost surely, 2^{23115046611721} is an apocalyptic number.

23115046611721 is the 4807811-st square number.

23115046611721 is the 2403906-th centered octagonal number.

It is an amenable number.

23115046611721 is a deficient number, since it is larger than the sum of its proper divisors (442786459532).

23115046611721 is an frugal number, since it uses more digits than its factorization.

23115046611721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1082 (or 541 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 40.

The spelling of 23115046611721 in words is "twenty-three trillion, one hundred fifteen billion, forty-six million, six hundred eleven thousand, seven hundred twenty-one".