120202323121 has 4 divisors (see below), whose sum is σ = 126528761200. Its totient is φ = 113875885044.

The previous prime is 120202323061. The next prime is 120202323179. The reversal of 120202323121 is 121323202021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120202323121 - 2⁷ = 120202322993 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 6326438059 = 120202323121 / (1 + 2 + 0 + 2 + 0 + 2 + 3 + 2 + 3 + 1 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120202327121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3163219011 + ... + 3163219048.

It is an arithmetic number, because the mean of its divisors is an integer number (31632190300).

Almost surely, 2^120202323121 is an apocalyptic number.

It is an amenable number.

120202323121 is a deficient number, since it is larger than the sum of its proper divisors (6326438079).

120202323121 is an equidigital number, since it uses as much as digits as its factorization.

120202323121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6326438078.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 120202323121 its reverse (121323202021), we get a palindrome (241525525142).

The spelling of 120202323121 in words is "one hundred twenty billion, two hundred two million, three hundred twenty-three thousand, one hundred twenty-one".