313121212020000 has 2160 divisors, whose sum is σ = 1207316135817792. Its totient is φ = 76799923200000.

The previous prime is 313121212019983. The next prime is 313121212020061. The reversal of 313121212020000 is 20212121313.

313121212020000 is a `hidden beast` number, since 3 + 131 + 212 + 120 + 200 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 359 ways as a sum of consecutive naturals, for example, 572433659727 + ... + 572433660273.

Almost surely, 2^{313121212020000} is an apocalyptic number.

313121212020000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 313121212020000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (603658067908896).

313121212020000 is an abundant number, since it is smaller than the sum of its proper divisors (894194923797792).

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

313121212020000 is a wasteful number, since it uses less digits than its factorization.

313121212020000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 781 (or 718 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 313121212020000 its reverse (20212121313), we get a palindrome (313141424141313).

The spelling of 313121212020000 in words is "three hundred thirteen trillion, one hundred twenty-one billion, two hundred twelve million, twenty thousand".