120051421 has 24 divisors (see below), whose sum is σ = 149713920. Its totient is φ = 95733792.

The previous prime is 120051419. The next prime is 120051431. The reversal of 120051421 is 124150021.

It is not a de Polignac number, because 120051421 - 2¹ = 120051419 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 120051395 and 120051404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120051431) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40260 + ... + 43138.

It is an arithmetic number, because the mean of its divisors is an integer number (6238080).

Almost surely, 2^120051421 is an apocalyptic number.

It is an amenable number.

120051421 is a deficient number, since it is larger than the sum of its proper divisors (29662499).

120051421 is a wasteful number, since it uses less digits than its factorization.

120051421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2953 (or 2946 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 16.

The square root of 120051421 is about 10956.7979355284. The cubic root of 120051421 is about 493.3128576337.

The spelling of 120051421 in words is "one hundred twenty million, fifty-one thousand, four hundred twenty-one".