331401051 has 10 divisors (see below), whose sum is σ = 495056012. Its totient is φ = 220933980.

The previous prime is 331401029. The next prime is 331401071. The reversal of 331401051 is 150104133.

It is not a de Polignac number, because 331401051 - 2⁵ = 331401019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331401001) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 2045605 + ... + 2045766.

Almost surely, 2^331401051 is an apocalyptic number.

331401051 is a deficient number, since it is larger than the sum of its proper divisors (163654961).

331401051 is an equidigital number, since it uses as much as digits as its factorization.

331401051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4091383 (or 4091374 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 331401051 is about 18204.4239403503. The cubic root of 331401051 is about 692.0189074266.

Adding to 331401051 its reverse (150104133), we get a palindrome (481505184).

It can be divided in two parts, 33140 and 1051, that added together give a triangular number (34191 = T₂₆₁).

The spelling of 331401051 in words is "three hundred thirty-one million, four hundred one thousand, fifty-one".