311403432404 has 24 divisors (see below), whose sum is σ = 550677861888. Its totient is φ = 154075263840.

The previous prime is 311403432367. The next prime is 311403432407. The reversal of 311403432404 is 404234304113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311403432407) 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, 896267 + ... + 1194194.

It is an arithmetic number, because the mean of its divisors is an integer number (22944910912).

Almost surely, 2^311403432404 is an apocalyptic number.

It is an amenable number.

311403432404 is a deficient number, since it is larger than the sum of its proper divisors (239274429484).

311403432404 is a wasteful number, since it uses less digits than its factorization.

311403432404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2090855 (or 2090853 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 311403432404 its reverse (404234304113), we get a palindrome (715637736517).

The spelling of 311403432404 in words is "three hundred eleven billion, four hundred three million, four hundred thirty-two thousand, four hundred four".