211310300020 has 12 divisors (see below), whose sum is σ = 443751630084. Its totient is φ = 84524120000.

The previous prime is 211310300009. The next prime is 211310300077. The reversal of 211310300020 is 20003013112.

It can be written as a sum of positive squares in 2 ways, for example, as 30777088356 + 180533211664 = 175434^2 + 424892^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5282757481 + ... + 5282757520.

It is an arithmetic number, because the mean of its divisors is an integer number (36979302507).

Almost surely, 2^211310300020 is an apocalyptic number.

211310300020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211310300020 is an abundant number, since it is smaller than the sum of its proper divisors (232441330064).

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

211310300020 is a wasteful number, since it uses less digits than its factorization.

211310300020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10565515010 (or 10565515008 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 211310300020 its reverse (20003013112), we get a palindrome (231313313132).

The spelling of 211310300020 in words is "two hundred eleven billion, three hundred ten million, three hundred thousand, twenty".