120706421 has 8 divisors (see below), whose sum is σ = 132959424. Its totient is φ = 108666720.

The previous prime is 120706403. The next prime is 120706423. The reversal of 120706421 is 124607021.

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

It is a cyclic number.

It is not a de Polignac number, because 120706421 - 2⁶ = 120706357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120706423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52136 + ... + 54401.

It is an arithmetic number, because the mean of its divisors is an integer number (16619928).

Almost surely, 2^120706421 is an apocalyptic number.

120706421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

120706421 is a deficient number, since it is larger than the sum of its proper divisors (12253003).

120706421 is a wasteful number, since it uses less digits than its factorization.

120706421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106651.

The product of its (nonzero) digits is 672, while the sum is 23.

The square root of 120706421 is about 10986.6473958164. The cubic root of 120706421 is about 494.2084018010.

The spelling of 120706421 in words is "one hundred twenty million, seven hundred six thousand, four hundred twenty-one".