120421141121 has 4 divisors (see below), whose sum is σ = 120423833412. Its totient is φ = 120418448832.

The previous prime is 120421141117. The next prime is 120421141157. The reversal of 120421141121 is 121141124021.

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 12466839025 + 107954302096 = 111655^2 + 328564^2 .

It is a cyclic number.

It is not a de Polignac number, because 120421141121 - 2² = 120421141117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120421141093 and 120421141102.

It is not an unprimeable number, because it can be changed into a prime (120421141921) 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, 1277900 + ... + 1368893.

It is an arithmetic number, because the mean of its divisors is an integer number (30105958353).

Almost surely, 2^120421141121 is an apocalyptic number.

It is an amenable number.

120421141121 is a deficient number, since it is larger than the sum of its proper divisors (2692291).

120421141121 is an equidigital number, since it uses as much as digits as its factorization.

120421141121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692290.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 120421141121 its reverse (121141124021), we get a palindrome (241562265142).

The spelling of 120421141121 in words is "one hundred twenty billion, four hundred twenty-one million, one hundred forty-one thousand, one hundred twenty-one".