331111434 has 16 divisors (see below), whose sum is σ = 683585280. Its totient is φ = 106810080.

The previous prime is 331111433. The next prime is 331111457. The reversal of 331111434 is 434111133.

It is a self number, because there is not a number n which added to its sum of digits gives 331111434.

It is not an unprimeable number, because it can be changed into a prime (331111433) 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, 889899 + ... + 890270.

It is an arithmetic number, because the mean of its divisors is an integer number (42724080).

Almost surely, 2^331111434 is an apocalyptic number.

331111434 is an abundant number, since it is smaller than the sum of its proper divisors (352473846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331111434 is a wasteful number, since it uses less digits than its factorization.

331111434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780205.

The product of its digits is 432, while the sum is 21.

The square root of 331111434 is about 18196.4676242396. The cubic root of 331111434 is about 691.8172596535.

Adding to 331111434 its reverse (434111133), we get a palindrome (765222567).

The spelling of 331111434 in words is "three hundred thirty-one million, one hundred eleven thousand, four hundred thirty-four".