23132020121 has 16 divisors (see below), whose sum is σ = 27247123584. Its totient is φ = 19223339904.

The previous prime is 23132020103. The next prime is 23132020141. The reversal of 23132020121 is 12102023132.

It is a cyclic number.

It is not a de Polignac number, because 23132020121 - 2²² = 23127825817 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23132020121.

It is not an unprimeable number, because it can be changed into a prime (23132020141) 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, 84500 + ... + 231093.

It is an arithmetic number, because the mean of its divisors is an integer number (1702945224).

Almost surely, 2^23132020121 is an apocalyptic number.

It is an amenable number.

23132020121 is a deficient number, since it is larger than the sum of its proper divisors (4115103463).

23132020121 is a wasteful number, since it uses less digits than its factorization.

23132020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 315920.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 23132020121 its reverse (12102023132), we get a palindrome (35234043253).

The spelling of 23132020121 in words is "twenty-three billion, one hundred thirty-two million, twenty thousand, one hundred twenty-one".