23032132121 has 4 divisors (see below), whose sum is σ = 23117753700. Its totient is φ = 22946510544.

The previous prime is 23032132073. The next prime is 23032132141. The reversal of 23032132121 is 12123123032.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 4151998096 + 18880134025 = 64436^2 + 137405^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23032132121 is a prime.

It is a super-2 number, since 2×23032132121² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23032132093 and 23032132102.

It is not an unprimeable number, because it can be changed into a prime (23032132141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42810386 + ... + 42810923.

It is an arithmetic number, because the mean of its divisors is an integer number (5779438425).

Almost surely, 2^23032132121 is an apocalyptic number.

It is an amenable number.

23032132121 is a deficient number, since it is larger than the sum of its proper divisors (85621579).

23032132121 is an equidigital number, since it uses as much as digits as its factorization.

23032132121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85621578.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23032132121 its reverse (12123123032), we get a palindrome (35155255153).

The spelling of 23032132121 in words is "twenty-three billion, thirty-two million, one hundred thirty-two thousand, one hundred twenty-one".