331143043 has 32 divisors (see below), whose sum is σ = 426995712. Its totient is φ = 249328800.

The previous prime is 331142971. The next prime is 331143047. The reversal of 331143043 is 340341133.

It is a happy number.

It is not a de Polignac number, because 331143043 - 2¹³ = 331134851 is a prime.

It is not an unprimeable number, because it can be changed into a prime (331143047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 340548 + ... + 341518.

It is an arithmetic number, because the mean of its divisors is an integer number (13343616).

Almost surely, 2^331143043 is an apocalyptic number.

331143043 is a deficient number, since it is larger than the sum of its proper divisors (95852669).

331143043 is a wasteful number, since it uses less digits than its factorization.

331143043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1135.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 331143043 is about 18197.3361512063. The cubic root of 331143043 is about 691.8392733460.

Adding to 331143043 its reverse (340341133), we get a palindrome (671484176).

The spelling of 331143043 in words is "three hundred thirty-one million, one hundred forty-three thousand, forty-three".