211232032400 has 30 divisors (see below), whose sum is σ = 507484958802. Its totient is φ = 84492812800.

The previous prime is 211232032381. The next prime is 211232032457. The reversal of 211232032400 is 4230232112.

It can be written as a sum of positive squares in 3 ways, for example, as 11201258896 + 200030773504 = 105836^2 + 447248^2 .

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, 264039641 + ... + 264040440.

Almost surely, 2^211232032400 is an apocalyptic number.

211232032400 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211232032400 is an abundant number, since it is smaller than the sum of its proper divisors (296252926402).

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

211232032400 is a wasteful number, since it uses less digits than its factorization.

211232032400 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528080099 (or 528080088 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 211232032400 its reverse (4230232112), we get a palindrome (215462264512).

The spelling of 211232032400 in words is "two hundred eleven billion, two hundred thirty-two million, thirty-two thousand, four hundred".