211232552430 has 32 divisors (see below), whose sum is σ = 508168080000. Its totient is φ = 56194241312.

The previous prime is 211232552417. The next prime is 211232552551. The reversal of 211232552430 is 34255232112.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8389680 + ... + 8414819.

It is an arithmetic number, because the mean of its divisors is an integer number (15880252500).

Almost surely, 2^211232552430 is an apocalyptic number.

211232552430 is an abundant number, since it is smaller than the sum of its proper divisors (296935527570).

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

211232552430 is a wasteful number, since it uses less digits than its factorization.

211232552430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16804928.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 211232552430 its reverse (34255232112), we get a palindrome (245487784542).

The spelling of 211232552430 in words is "two hundred eleven billion, two hundred thirty-two million, five hundred fifty-two thousand, four hundred thirty".