31313134043004 has 192 divisors, whose sum is σ = 83020679239680. Its totient is φ = 9102621665280.

The previous prime is 31313134042963. The next prime is 31313134043089. The reversal of 31313134043004 is 40034043131313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 333039552 + ... + 333133560.

It is an arithmetic number, because the mean of its divisors is an integer number (432399371040).

Almost surely, 2^{31313134043004} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31313134043004, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41510339619840).

31313134043004 is an abundant number, since it is smaller than the sum of its proper divisors (51707545196676).

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

31313134043004 is a wasteful number, since it uses less digits than its factorization.

31313134043004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95140 (or 95138 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 31313134043004 its reverse (40034043131313), we get a palindrome (71347177174317).

The spelling of 31313134043004 in words is "thirty-one trillion, three hundred thirteen billion, one hundred thirty-four million, forty-three thousand, four".