31331441131344 has 120 divisors (see below), whose sum is σ = 92385210003840. Its totient is φ = 9892747028736.

The previous prime is 31331441131327. The next prime is 31331441131411. The reversal of 31331441131344 is 44313114413313.

31331441131344 is a `hidden beast` number, since 3 + 1 + 331 + 4 + 4 + 1 + 1 + 313 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

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

It is a junction number, because it is equal to n+sod(n) for n = 31331441131299 and 31331441131308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 45581079 + ... + 46263350.

It is an arithmetic number, because the mean of its divisors is an integer number (769876750032).

Almost surely, 2^{31331441131344} is an apocalyptic number.

It is an amenable number.

31331441131344 is an abundant number, since it is smaller than the sum of its proper divisors (61053768872496).

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

31331441131344 is a wasteful number, since it uses less digits than its factorization.

31331441131344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91844569 (or 91844560 counting only the distinct ones).

The product of its digits is 62208, while the sum is 36.

Adding to 31331441131344 its reverse (44313114413313), we get a palindrome (75644555544657).

The spelling of 31331441131344 in words is "thirty-one trillion, three hundred thirty-one billion, four hundred forty-one million, one hundred thirty-one thousand, three hundred forty-four".