3131311430000 has 300 divisors, whose sum is σ = 8692224697728. Its totient is φ = 1088156160000.

The previous prime is 3131311429907. The next prime is 3131311430059. The reversal of 3131311430000 is 341131313.

It is a super-2 number, since 2×3131311430000² (a number of 26 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 59 ways as a sum of consecutive naturals, for example, 28675505 + ... + 28784495.

Almost surely, 2^{3131311430000} 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 3131311430000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4346112348864).

3131311430000 is an abundant number, since it is smaller than the sum of its proper divisors (5560913267728).

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

3131311430000 is a wasteful number, since it uses less digits than its factorization.

3131311430000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109062 (or 109028 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 3131311430000 its reverse (341131313), we get a palindrome (3131652561313).

The spelling of 3131311430000 in words is "three trillion, one hundred thirty-one billion, three hundred eleven million, four hundred thirty thousand".