120231569 has 4 divisors (see below), whose sum is σ = 123027696. Its totient is φ = 117435444.

The previous prime is 120231541. The next prime is 120231577. The reversal of 120231569 is 965132021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120231569 - 2⁸ = 120231313 is a prime.

It is a super-2 number, since 2×120231569² = 28911260368403522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120231169) 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 3 ways as a sum of consecutive naturals, for example, 1397999 + ... + 1398084.

It is an arithmetic number, because the mean of its divisors is an integer number (30756924).

Almost surely, 2^120231569 is an apocalyptic number.

It is an amenable number.

120231569 is a deficient number, since it is larger than the sum of its proper divisors (2796127).

120231569 is an equidigital number, since it uses as much as digits as its factorization.

120231569 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2796126.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 120231569 is about 10965.0156862633. The cubic root of 120231569 is about 493.5594878104.

The spelling of 120231569 in words is "one hundred twenty million, two hundred thirty-one thousand, five hundred sixty-nine".