120736321 has 4 divisors (see below), whose sum is σ = 120832000. Its totient is φ = 120640644.

The previous prime is 120736249. The next prime is 120736337. The reversal of 120736321 is 123637021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123637021 = 31 ⋅3988291.

It is a cyclic number.

It is not a de Polignac number, because 120736321 - 2¹³ = 120728129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120736381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45921 + ... + 48478.

It is an arithmetic number, because the mean of its divisors is an integer number (30208000).

Almost surely, 2^120736321 is an apocalyptic number.

It is an amenable number.

120736321 is a deficient number, since it is larger than the sum of its proper divisors (95679).

120736321 is an equidigital number, since it uses as much as digits as its factorization.

120736321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95678.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 120736321 is about 10988.0080542380. The cubic root of 120736321 is about 494.2492049639.

The spelling of 120736321 in words is "one hundred twenty million, seven hundred thirty-six thousand, three hundred twenty-one".