23280731150121 has 9 divisors (see below), whose sum is σ = 33627743680791. Its totient is φ = 15520477783392.

The previous prime is 23280731150003. The next prime is 23280731150141. The reversal of 23280731150121 is 12105113708232.

The square root of 23280731150121 is 4825011.

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

23280731150121 is a `hidden beast` number, since 2 + 3 + 2 + 80 + 73 + 1 + 1 + 501 + 2 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1872860675625 + 21407870474496 = 1368525^2 + 4626864^2 .

It is a tau number, because it is divible by the number of its divisors (9).

It is not a de Polignac number, because 23280731150121 - 2⁹ = 23280731149609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (23280731150141) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 13670865 + ... + 15279201.

Almost surely, 2^{23280731150121} is an apocalyptic number.

23280731150121 is the 4825011-st square number.

23280731150121 is the 2412506-th centered octagonal number.

It is an amenable number.

23280731150121 is a deficient number, since it is larger than the sum of its proper divisors (10347012530670).

23280731150121 is an frugal number, since it uses more digits than its factorization.

23280731150121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3216680 (or 1608340 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

Multiplying 23280731150121 by its sum of digits (36), we get a square (838106321404356 = 28950066²).

Adding to 23280731150121 its reverse (12105113708232), we get a palindrome (35385844858353).

The spelling of 23280731150121 in words is "twenty-three trillion, two hundred eighty billion, seven hundred thirty-one million, one hundred fifty thousand, one hundred twenty-one".