311430000020200 has 24 divisors (see below), whose sum is σ = 724074750047430. Its totient is φ = 124572000008000.

The previous prime is 311430000020177. The next prime is 311430000020221. The reversal of 311430000020200 is 2020000034113.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 130391414236836 + 181038585783364 = 11418906^2 + 13455058^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 778574999851 + ... + 778575000250.

Almost surely, 2^{311430000020200} is an apocalyptic number.

It is an amenable number.

311430000020200 is an abundant number, since it is smaller than the sum of its proper divisors (412644750027230).

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

311430000020200 is a wasteful number, since it uses less digits than its factorization.

311430000020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1557150000117 (or 1557150000108 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 311430000020200 its reverse (2020000034113), we get a palindrome (313450000054313).

The spelling of 311430000020200 in words is "three hundred eleven trillion, four hundred thirty billion, twenty thousand, two hundred".