211133231300 has 18 divisors (see below), whose sum is σ = 458159112138. Its totient is φ = 84453292480.

The previous prime is 211133231273. The next prime is 211133231311. The reversal of 211133231300 is 3132331112.

It can be written as a sum of positive squares in 3 ways, for example, as 17263857664 + 193869373636 = 131392^2 + 440306^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1055666057 + ... + 1055666256.

Almost surely, 2^211133231300 is an apocalyptic number.

211133231300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211133231300 is an abundant number, since it is smaller than the sum of its proper divisors (247025880838).

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

211133231300 is a wasteful number, since it uses less digits than its factorization.

211133231300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2111332327 (or 2111332320 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 211133231300 its reverse (3132331112), we get a palindrome (214265562412).

The spelling of 211133231300 in words is "two hundred eleven billion, one hundred thirty-three million, two hundred thirty-one thousand, three hundred".