211133086340 has 72 divisors (see below), whose sum is σ = 490044563736. Its totient is φ = 76351334400.

The previous prime is 211133086331. The next prime is 211133086343. The reversal of 211133086340 is 43680331112.

It can be written as a sum of positive squares in 4 ways, for example, as 8505266176 + 202627820164 = 92224^2 + 450142^2 .

It is a junction number, because it is equal to n+sod(n) for n = 211133086297 and 211133086306.

It is not an unprimeable number, because it can be changed into a prime (211133086343) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 197012 + ... + 679028.

Almost surely, 2^211133086340 is an apocalyptic number.

211133086340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211133086340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (245022281868).

211133086340 is an abundant number, since it is smaller than the sum of its proper divisors (278911477396).

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

211133086340 is a wasteful number, since it uses less digits than its factorization.

211133086340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482229 (or 482216 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 32.

The spelling of 211133086340 in words is "two hundred eleven billion, one hundred thirty-three million, eighty-six thousand, three hundred forty".