1000120331 has 12 divisors (see below), whose sum is σ = 1167163920. Its totient is φ = 854476560.

The previous prime is 1000120327. The next prime is 1000120337. The reversal of 1000120331 is 1330210001.

It is not a de Polignac number, because 1000120331 - 2² = 1000120327 is a prime.

It is a super-2 number, since 2×1000120331² = 2000481352959099122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000120337) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17576 + ... + 48053.

It is an arithmetic number, because the mean of its divisors is an integer number (97263660).

Almost surely, 2^1000120331 is an apocalyptic number.

1000120331 is a deficient number, since it is larger than the sum of its proper divisors (167043589).

1000120331 is an equidigital number, since it uses as much as digits as its factorization.

1000120331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65954 (or 65947 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1000120331 is about 31624.6791446174. The cubic root of 1000120331 is about 1000.0401087246.

Adding to 1000120331 its reverse (1330210001), we get a palindrome (2330330332).

The spelling of 1000120331 in words is "one billion, one hundred twenty thousand, three hundred thirty-one".