23727308121081 has 24 divisors (see below), whose sum is σ = 34747210967040. Its totient is φ = 15599298188736.

The previous prime is 23727308121067. The next prime is 23727308121107. The reversal of 23727308121081 is 18012180372732.

23727308121081 is a `hidden beast` number, since 2 + 37 + 27 + 308 + 1 + 210 + 81 = 666.

It is not a de Polignac number, because 23727308121081 - 2¹¹ = 23727308119033 is a prime.

It is a super-2 number, since 2×23727308121081² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (23727308121031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2059300 + ... + 7189946.

It is an arithmetic number, because the mean of its divisors is an integer number (1447800456960).

Almost surely, 2^{23727308121081} is an apocalyptic number.

It is an amenable number.

23727308121081 is a deficient number, since it is larger than the sum of its proper divisors (11019902845959).

23727308121081 is a wasteful number, since it uses less digits than its factorization.

23727308121081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5137765 (or 5137762 counting only the distinct ones).

The product of its (nonzero) digits is 225792, while the sum is 45.

The spelling of 23727308121081 in words is "twenty-three trillion, seven hundred twenty-seven billion, three hundred eight million, one hundred twenty-one thousand, eighty-one".