20233302312121 has 4 divisors (see below), whose sum is σ = 20233314330100. Its totient is φ = 20233290294144.

The previous prime is 20233302312103. The next prime is 20233302312151. The reversal of 20233302312121 is 12121320333202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 15807900087225 + 4425402224896 = 3975915^2 + 2103664^2 .

It is a cyclic number.

It is not a de Polignac number, because 20233302312121 - 2¹⁹ = 20233301787833 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20233302312151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2971956 + ... + 7021333.

It is an arithmetic number, because the mean of its divisors is an integer number (5058328582525).

Almost surely, 2^{20233302312121} is an apocalyptic number.

It is an amenable number.

20233302312121 is a deficient number, since it is larger than the sum of its proper divisors (12017979).

20233302312121 is an equidigital number, since it uses as much as digits as its factorization.

20233302312121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12017978.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 20233302312121 its reverse (12121320333202), we get a palindrome (32354622645323).

The spelling of 20233302312121 in words is "twenty trillion, two hundred thirty-three billion, three hundred two million, three hundred twelve thousand, one hundred twenty-one".