202331013330121 has 4 divisors (see below), whose sum is σ = 217894937432452. Its totient is φ = 186767089227792.

The previous prime is 202331013330113. The next prime is 202331013330157. The reversal of 202331013330121 is 121033310133202.

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 131331852120121 + 70999161210000 = 11460011^2 + 8426100^2 .

It is a cyclic number.

It is not a de Polignac number, because 202331013330121 - 2³ = 202331013330113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (202331013330101) 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, 7781962051146 + ... + 7781962051171.

It is an arithmetic number, because the mean of its divisors is an integer number (54473734358113).

Almost surely, 2^{202331013330121} is an apocalyptic number.

It is an amenable number.

202331013330121 is a deficient number, since it is larger than the sum of its proper divisors (15563924102331).

202331013330121 is a wasteful number, since it uses less digits than its factorization.

202331013330121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15563924102330.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 202331013330121 its reverse (121033310133202), we get a palindrome (323364323463323).

The spelling of 202331013330121 in words is "two hundred two trillion, three hundred thirty-one billion, thirteen million, three hundred thirty thousand, one hundred twenty-one".