120213000121 has 4 divisors (see below), whose sum is σ = 120289521744. Its totient is φ = 120136478500.

The previous prime is 120213000101. The next prime is 120213000169. The reversal of 120213000121 is 121000312021.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121000312021 = 17 ⋅7117665413.

It is a cyclic number.

It is not a de Polignac number, because 120213000121 - 2³¹ = 118065516473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120213000101) 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, 38258455 + ... + 38261596.

It is an arithmetic number, because the mean of its divisors is an integer number (30072380436).

Almost surely, 2^120213000121 is an apocalyptic number.

It is an amenable number.

120213000121 is a deficient number, since it is larger than the sum of its proper divisors (76521623).

120213000121 is an equidigital number, since it uses as much as digits as its factorization.

120213000121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76521622.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 120213000121 its reverse (121000312021), we get a palindrome (241213312142).

The spelling of 120213000121 in words is "one hundred twenty billion, two hundred thirteen million, one hundred twenty-one", and thus it is an aban number.