120302421 has 16 divisors (see below), whose sum is σ = 173047104. Its totient is φ = 74057984.

The previous prime is 120302419. The next prime is 120302423. The reversal of 120302421 is 124203021.

It is an interprime number because it is at equal distance from previous prime (120302419) and next prime (120302423).

It is not a de Polignac number, because 120302421 - 2¹ = 120302419 is a prime.

It is a super-2 number, since 2×120302421² = 28945344996922482, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120302421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120302423) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19551 + ... + 24956.

It is an arithmetic number, because the mean of its divisors is an integer number (10815444).

Almost surely, 2^120302421 is an apocalyptic number.

It is an amenable number.

120302421 is a deficient number, since it is larger than the sum of its proper divisors (52744683).

120302421 is a wasteful number, since it uses less digits than its factorization.

120302421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44580.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 120302421 is about 10968.2460311574. The cubic root of 120302421 is about 493.6564196734.

Adding to 120302421 its reverse (124203021), we get a palindrome (244505442).

The spelling of 120302421 in words is "one hundred twenty million, three hundred two thousand, four hundred twenty-one".