311523053404 has 24 divisors (see below), whose sum is σ = 554364388368. Its totient is φ = 153142154880.

The previous prime is 311523053389. The next prime is 311523053407. The reversal of 311523053404 is 404350325113.

It is a super-2 number, since 2×311523053404² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311523053407) 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, 975919 + ... + 1255174.

It is an arithmetic number, because the mean of its divisors is an integer number (23098516182).

Almost surely, 2^311523053404 is an apocalyptic number.

It is an amenable number.

311523053404 is a deficient number, since it is larger than the sum of its proper divisors (242841334964).

311523053404 is a wasteful number, since it uses less digits than its factorization.

311523053404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2231685 (or 2231683 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 311523053404 its reverse (404350325113), we get a palindrome (715873378517).

The spelling of 311523053404 in words is "three hundred eleven billion, five hundred twenty-three million, fifty-three thousand, four hundred four".