120811397 has 16 divisors (see below), whose sum is σ = 140434560. Its totient is φ = 101792832.

The previous prime is 120811391. The next prime is 120811403. The reversal of 120811397 is 793118021.

It is an interprime number because it is at equal distance from previous prime (120811391) and next prime (120811403).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120811397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120811391) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 155903 + ... + 156675.

It is an arithmetic number, because the mean of its divisors is an integer number (8777160).

Almost surely, 2^120811397 is an apocalyptic number.

It is an amenable number.

120811397 is a deficient number, since it is larger than the sum of its proper divisors (19623163).

120811397 is an equidigital number, since it uses as much as digits as its factorization.

120811397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1132.

The product of its (nonzero) digits is 3024, while the sum is 32.

The square root of 120811397 is about 10991.4237931216. The cubic root of 120811397 is about 494.3516280639.

The spelling of 120811397 in words is "one hundred twenty million, eight hundred eleven thousand, three hundred ninety-seven".