331402043 has 6 divisors (see below), whose sum is σ = 385508556. Its totient is φ = 284058852.

The previous prime is 331402021. The next prime is 331402051. The reversal of 331402043 is 340204133.

It is not a de Polignac number, because 331402043 - 2⁸ = 331401787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331402013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3381605 + ... + 3381702.

It is an arithmetic number, because the mean of its divisors is an integer number (64251426).

Almost surely, 2^331402043 is an apocalyptic number.

331402043 is a deficient number, since it is larger than the sum of its proper divisors (54106513).

331402043 is an equidigital number, since it uses as much as digits as its factorization.

331402043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6763321 (or 6763314 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 331402043 is about 18204.4511864544. The cubic root of 331402043 is about 692.0195979113.

Adding to 331402043 its reverse (340204133), we get a palindrome (671606176).

The spelling of 331402043 in words is "three hundred thirty-one million, four hundred two thousand, forty-three".