23161323065261 has 16 divisors (see below), whose sum is σ = 23270659776000. Its totient is φ = 23052129240000.

The previous prime is 23161323065239. The next prime is 23161323065273. The reversal of 23161323065261 is 16256032316132.

It is a cyclic number.

It is not a de Polignac number, because 23161323065261 - 2¹⁰ = 23161323064237 is a prime.

It is a super-2 number, since 2×23161323065261² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23161323065281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2958397295 + ... + 2958405123.

It is an arithmetic number, because the mean of its divisors is an integer number (1454416236000).

Almost surely, 2^{23161323065261} is an apocalyptic number.

It is an amenable number.

23161323065261 is a deficient number, since it is larger than the sum of its proper divisors (109336710739).

23161323065261 is a wasteful number, since it uses less digits than its factorization.

23161323065261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15220.

The product of its (nonzero) digits is 233280, while the sum is 41.

The spelling of 23161323065261 in words is "twenty-three trillion, one hundred sixty-one billion, three hundred twenty-three million, sixty-five thousand, two hundred sixty-one".