230121202331 has 2 divisors, whose sum is σ = 230121202332. Its totient is φ = 230121202330.

The previous prime is 230121202327. The next prime is 230121202357. The reversal of 230121202331 is 133202121032.

230121202331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 230121202331 - 2² = 230121202327 is a prime.

It is a super-2 number, since 2×230121202331² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (230121202361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 115060601165 + 115060601166.

It is an arithmetic number, because the mean of its divisors is an integer number (115060601166).

Almost surely, 2^230121202331 is an apocalyptic number.

230121202331 is a deficient number, since it is larger than the sum of its proper divisors (1).

230121202331 is an equidigital number, since it uses as much as digits as its factorization.

230121202331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 230121202331 its reverse (133202121032), we get a palindrome (363323323363).

The spelling of 230121202331 in words is "two hundred thirty billion, one hundred twenty-one million, two hundred two thousand, three hundred thirty-one".