1012020331 has 8 divisors (see below), whose sum is σ = 1160772320. Its totient is φ = 864312768.

The previous prime is 1012020293. The next prime is 1012020341. The reversal of 1012020331 is 1330202101.

1012020331 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1012020331 - 2²⁵ = 978465899 is a prime.

It is a super-2 number, since 2×1012020331² = 2048370300714699122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1012020341) 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, 259026 + ... + 262903.

It is an arithmetic number, because the mean of its divisors is an integer number (145096540).

Almost surely, 2^1012020331 is an apocalyptic number.

1012020331 is a deficient number, since it is larger than the sum of its proper divisors (148751989).

1012020331 is an equidigital number, since it uses as much as digits as its factorization.

1012020331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522213.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1012020331 is about 31812.2669893235. The cubic root of 1012020331 is about 1003.9908290962.

Adding to 1012020331 its reverse (1330202101), we get a palindrome (2342222432).

The spelling of 1012020331 in words is "one billion, twelve million, twenty thousand, three hundred thirty-one".