2311331313144 has 64 divisors (see below), whose sum is σ = 6603953126400. Its totient is φ = 660365437824.

The previous prime is 2311331313133. The next prime is 2311331313163. The reversal of 2311331313144 is 4413131331132.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8835394 + ... + 9093230.

It is an arithmetic number, because the mean of its divisors is an integer number (103186767600).

Almost surely, 2^{2311331313144} is an apocalyptic number.

2311331313144 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2311331313144 is an abundant number, since it is smaller than the sum of its proper divisors (4292621813256).

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

2311331313144 is a wasteful number, since it uses less digits than its factorization.

2311331313144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311212 (or 311208 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

Adding to 2311331313144 its reverse (4413131331132), we get a palindrome (6724462644276).

The spelling of 2311331313144 in words is "two trillion, three hundred eleven billion, three hundred thirty-one million, three hundred thirteen thousand, one hundred forty-four".