23032002121 has 4 divisors (see below), whose sum is σ = 23042300292. Its totient is φ = 23021703952.

The previous prime is 23032002107. The next prime is 23032002127. The reversal of 23032002121 is 12120023032.

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 19969929225 + 3062072896 = 141315^2 + 55336^2 .

It is a cyclic number.

It is not a de Polignac number, because 23032002121 - 2⁵ = 23032002089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23032002095 and 23032002104.

It is not an unprimeable number, because it can be changed into a prime (23032002127) 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, 5145730 + ... + 5150203.

It is an arithmetic number, because the mean of its divisors is an integer number (5760575073).

Almost surely, 2^23032002121 is an apocalyptic number.

It is an amenable number.

23032002121 is a deficient number, since it is larger than the sum of its proper divisors (10298171).

23032002121 is a wasteful number, since it uses less digits than its factorization.

23032002121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10298170.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 23032002121 its reverse (12120023032), we get a palindrome (35152025153).

The spelling of 23032002121 in words is "twenty-three billion, thirty-two million, two thousand, one hundred twenty-one".