313122530000 has 200 divisors, whose sum is σ = 868221180288. Its totient is φ = 107130816000.

The previous prime is 313122529987. The next prime is 313122530011. The reversal of 313122530000 is 35221313.

It is a tau number, because it is divible by the number of its divisors (200).

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 39 ways as a sum of consecutive naturals, for example, 35205554 + ... + 35214446.

Almost surely, 2^313122530000 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 313122530000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (434110590144).

313122530000 is an abundant number, since it is smaller than the sum of its proper divisors (555098650288).

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

313122530000 is an equidigital number, since it uses as much as digits as its factorization.

313122530000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9431 (or 9410 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 313122530000 its reverse (35221313), we get a palindrome (313157751313).

The spelling of 313122530000 in words is "three hundred thirteen billion, one hundred twenty-two million, five hundred thirty thousand".