211031330100 has 72 divisors (see below), whose sum is σ = 623575171968. Its totient is φ = 55077676800.

The previous prime is 211031330099. The next prime is 211031330123. The reversal of 211031330100 is 1033130112.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 211031330100.

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, 7469281 + ... + 7497480.

Almost surely, 2^211031330100 is an apocalyptic number.

211031330100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211031330100 is an abundant number, since it is smaller than the sum of its proper divisors (412543841868).

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

211031330100 is a wasteful number, since it uses less digits than its factorization.

211031330100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14966825 (or 14966818 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 211031330100 its reverse (1033130112), we get a palindrome (212064460212).

The spelling of 211031330100 in words is "two hundred eleven billion, thirty-one million, three hundred thirty thousand, one hundred".