20232121030551 has 48 divisors (see below), whose sum is σ = 31084633681920. Its totient is φ = 12636667802880.

The previous prime is 20232121030547. The next prime is 20232121030603. The reversal of 20232121030551 is 15503012123202.

20232121030551 is a `hidden beast` number, since 2 + 0 + 2 + 3 + 2 + 1 + 2 + 103 + 0 + 551 = 666.

It is not a de Polignac number, because 20232121030551 - 2² = 20232121030547 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20232121030351) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 649303110 + ... + 649334268.

It is an arithmetic number, because the mean of its divisors is an integer number (647596535040).

Almost surely, 2^{20232121030551} is an apocalyptic number.

20232121030551 is a deficient number, since it is larger than the sum of its proper divisors (10852512651369).

20232121030551 is a wasteful number, since it uses less digits than its factorization.

20232121030551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50436 (or 50433 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 20232121030551 its reverse (15503012123202), we get a palindrome (35735133153753).

The spelling of 20232121030551 in words is "twenty trillion, two hundred thirty-two billion, one hundred twenty-one million, thirty thousand, five hundred fifty-one".