23120231121 has 24 divisors (see below), whose sum is σ = 37204975080. Its totient is φ = 13737217536.

The previous prime is 23120231039. The next prime is 23120231131. The reversal of 23120231121 is 12113202132.

23120231121 is a `hidden beast` number, since 2 + 312 + 0 + 231 + 121 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 406425600 + 22713805521 = 20160^2 + 150711^2 .

It is not a de Polignac number, because 23120231121 - 2¹⁴ = 23120214737 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23120231094 and 23120231103.

It is not an unprimeable number, because it can be changed into a prime (23120231131) 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, 3403656 + ... + 3410441.

It is an arithmetic number, because the mean of its divisors is an integer number (1550207295).

Almost surely, 2^23120231121 is an apocalyptic number.

It is an amenable number.

23120231121 is a deficient number, since it is larger than the sum of its proper divisors (14084743959).

23120231121 is a wasteful number, since it uses less digits than its factorization.

23120231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6814145 (or 6814142 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 23120231121 its reverse (12113202132), we get a palindrome (35233433253).

The spelling of 23120231121 in words is "twenty-three billion, one hundred twenty million, two hundred thirty-one thousand, one hundred twenty-one".