120723861 has 8 divisors (see below), whose sum is σ = 161728864. Its totient is φ = 80100720.

The previous prime is 120723829. The next prime is 120723881. The reversal of 120723861 is 168327021.

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

It is not a de Polignac number, because 120723861 - 2⁵ = 120723829 is a prime.

It is a super-2 number, since 2×120723861² = 29148501229494642, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120723881) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 94726 + ... + 95991.

It is an arithmetic number, because the mean of its divisors is an integer number (20216108).

Almost surely, 2^120723861 is an apocalyptic number.

It is an amenable number.

120723861 is a deficient number, since it is larger than the sum of its proper divisors (41005003).

120723861 is a wasteful number, since it uses less digits than its factorization.

120723861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190931.

The product of its (nonzero) digits is 4032, while the sum is 30.

The square root of 120723861 is about 10987.4410578624. The cubic root of 120723861 is about 494.2322021904.

The spelling of 120723861 in words is "one hundred twenty million, seven hundred twenty-three thousand, eight hundred sixty-one".