31131041000344 has 32 divisors (see below), whose sum is σ = 58537661703120. Its totient is φ = 15521000298496.

The previous prime is 31131041000341. The next prime is 31131041000363. The reversal of 31131041000344 is 44300014013113.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31131041000341) 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, 119813979 + ... + 120073525.

Almost surely, 2^{31131041000344} is an apocalyptic number.

It is an amenable number.

31131041000344 is a deficient number, since it is larger than the sum of its proper divisors (27406620702776).

31131041000344 is a wasteful number, since it uses less digits than its factorization.

31131041000344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 302379 (or 302375 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 31131041000344 its reverse (44300014013113), we get a palindrome (75431055013457).

The spelling of 31131041000344 in words is "thirty-one trillion, one hundred thirty-one billion, forty-one million, three hundred forty-four", and thus it is an aban number.