211131321108 has 24 divisors (see below), whose sum is σ = 492766794240. Its totient is φ = 70358957760.

The previous prime is 211131321101. The next prime is 211131321113. The reversal of 211131321108 is 801123131112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211131321101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2220148 + ... + 2313291.

It is an arithmetic number, because the mean of its divisors is an integer number (20531949760).

Almost surely, 2^211131321108 is an apocalyptic number.

It is an amenable number.

211131321108 is an abundant number, since it is smaller than the sum of its proper divisors (281635473132).

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

211131321108 is a wasteful number, since it uses less digits than its factorization.

211131321108 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4537327 (or 4537325 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 24.

The spelling of 211131321108 in words is "two hundred eleven billion, one hundred thirty-one million, three hundred twenty-one thousand, one hundred eight".