120323421 has 16 divisors (see below), whose sum is σ = 180025920. Its totient is φ = 79419600.

The previous prime is 120323353. The next prime is 120323471. The reversal of 120323421 is 124323021.

It is not a de Polignac number, because 120323421 - 2¹⁷ = 120192349 is a prime.

It is a super-2 number, since 2×120323421² = 28955451282286482, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 120323394 and 120323403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120323471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19335 + ... + 24788.

It is an arithmetic number, because the mean of its divisors is an integer number (11251620).

Almost surely, 2^120323421 is an apocalyptic number.

It is an amenable number.

120323421 is a deficient number, since it is larger than the sum of its proper divisors (59702499).

120323421 is a wasteful number, since it uses less digits than its factorization.

120323421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44233 (or 44227 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 120323421 is about 10969.2032983257. The cubic root of 120323421 is about 493.6851422366.

Adding to 120323421 its reverse (124323021), we get a palindrome (244646442).

The spelling of 120323421 in words is "one hundred twenty million, three hundred twenty-three thousand, four hundred twenty-one".