120956813 has 8 divisors (see below), whose sum is σ = 122773728. Its totient is φ = 119148624.

The previous prime is 120956791. The next prime is 120956833. The reversal of 120956813 is 318659021.

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 120956813 - 2⁶ = 120956749 is a prime.

It is a super-2 number, since 2×120956813² = 29261101222233938, 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 (120956833) 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, 29006 + ... + 32912.

It is an arithmetic number, because the mean of its divisors is an integer number (15346716).

Almost surely, 2^120956813 is an apocalyptic number.

It is an amenable number.

120956813 is a deficient number, since it is larger than the sum of its proper divisors (1816915).

120956813 is an equidigital number, since it uses as much as digits as its factorization.

120956813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4363.

The product of its (nonzero) digits is 12960, while the sum is 35.

The square root of 120956813 is about 10998.0367793529. The cubic root of 120956813 is about 494.5498925076.

The spelling of 120956813 in words is "one hundred twenty million, nine hundred fifty-six thousand, eight hundred thirteen".