120655331 has 4 divisors (see below), whose sum is σ = 120813000. Its totient is φ = 120497664.

The previous prime is 120655321. The next prime is 120655361. The reversal of 120655331 is 133556021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 133556021 = 7187 ⋅18583.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120655331 is a prime.

It is a super-2 number, since 2×120655331² = 29115417797439122, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120655331.

It is not an unprimeable number, because it can be changed into a prime (120655321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 77681 + ... + 79218.

It is an arithmetic number, because the mean of its divisors is an integer number (30203250).

Almost surely, 2^120655331 is an apocalyptic number.

120655331 is a deficient number, since it is larger than the sum of its proper divisors (157669).

120655331 is an equidigital number, since it uses as much as digits as its factorization.

120655331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157668.

The product of its (nonzero) digits is 2700, while the sum is 26.

The square root of 120655331 is about 10984.3220546377. The cubic root of 120655331 is about 494.1386660179.

The spelling of 120655331 in words is "one hundred twenty million, six hundred fifty-five thousand, three hundred thirty-one".