23132031121 has 16 divisors (see below), whose sum is σ = 25320390480. Its totient is φ = 21045381120.

The previous prime is 23132031077. The next prime is 23132031151. The reversal of 23132031121 is 12113023132.

It can be written as a sum of positive squares in 8 ways, for example, as 253956096 + 22878075025 = 15936^2 + 151255^2 .

It is a cyclic number.

It is not a de Polignac number, because 23132031121 - 2⁹ = 23132030609 is a prime.

It is a super-4 number, since 4×23132031121⁴ (a number of 43 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23132031151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 76266 + ... + 228211.

It is an arithmetic number, because the mean of its divisors is an integer number (1582524405).

Almost surely, 2^23132031121 is an apocalyptic number.

It is an amenable number.

23132031121 is a deficient number, since it is larger than the sum of its proper divisors (2188359359).

23132031121 is a wasteful number, since it uses less digits than its factorization.

23132031121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304644.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23132031121 its reverse (12113023132), we get a palindrome (35245054253).

The spelling of 23132031121 in words is "twenty-three billion, one hundred thirty-two million, thirty-one thousand, one hundred twenty-one".