1042020331 has 8 divisors (see below), whose sum is σ = 1139070528. Its totient is φ = 945357000.

The previous prime is 1042020281. The next prime is 1042020383. The reversal of 1042020331 is 1330202401.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042020331 is a prime.

It is a super-2 number, since 2×1042020331² = 2171612740434699122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042020731) 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, 91065 + ... + 101866.

It is an arithmetic number, because the mean of its divisors is an integer number (142383816).

Almost surely, 2^1042020331 is an apocalyptic number.

1042020331 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1042020331 is a deficient number, since it is larger than the sum of its proper divisors (97050197).

1042020331 is a wasteful number, since it uses less digits than its factorization.

1042020331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 193433.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1042020331 is about 32280.3396977169. The cubic root of 1042020331 is about 1013.8150427033.

Adding to 1042020331 its reverse (1330202401), we get a palindrome (2372222732).

The spelling of 1042020331 in words is "one billion, forty-two million, twenty thousand, three hundred thirty-one".