120331421 has 8 divisors (see below), whose sum is σ = 140448000. Its totient is φ = 100946448.

The previous prime is 120331417. The next prime is 120331487. The reversal of 120331421 is 124133021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 120331421 - 2² = 120331417 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120331421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120330421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182546 + ... + 183203.

It is an arithmetic number, because the mean of its divisors is an integer number (17556000).

Almost surely, 2^120331421 is an apocalyptic number.

It is an amenable number.

120331421 is a deficient number, since it is larger than the sum of its proper divisors (20116579).

120331421 is an equidigital number, since it uses as much as digits as its factorization.

120331421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365803.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 120331421 is about 10969.5679495594. The cubic root of 120331421 is about 493.6960832863.

Adding to 120331421 its reverse (124133021), we get a palindrome (244464442).

The spelling of 120331421 in words is "one hundred twenty million, three hundred thirty-one thousand, four hundred twenty-one".