211330131100 has 72 divisors (see below), whose sum is σ = 517527032400. Its totient is φ = 74197401600.

The previous prime is 211330131091. The next prime is 211330131113. The reversal of 211330131100 is 1131033112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3280485 + ... + 3344284.

It is an arithmetic number, because the mean of its divisors is an integer number (7187875450).

Almost surely, 2^211330131100 is an apocalyptic number.

211330131100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211330131100 is an abundant number, since it is smaller than the sum of its proper divisors (306196901300).

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

211330131100 is a wasteful number, since it uses less digits than its factorization.

211330131100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6624823 (or 6624816 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 211330131100 its reverse (1131033112), we get a palindrome (212461164212).

The spelling of 211330131100 in words is "two hundred eleven billion, three hundred thirty million, one hundred thirty-one thousand, one hundred".