212103231600 has 120 divisors (see below), whose sum is σ = 731701817392. Its totient is φ = 52210022400.

The previous prime is 212103231583. The next prime is 212103231617. The reversal of 212103231600 is 6132301212.

It is an interprime number because it is at equal distance from previous prime (212103231583) and next prime (212103231617).

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-3 number, since 3×212103231600³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6782581 + ... + 6813780.

Almost surely, 2^212103231600 is an apocalyptic number.

212103231600 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212103231600 is an abundant number, since it is smaller than the sum of its proper divisors (519598585792).

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

212103231600 is a wasteful number, since it uses less digits than its factorization.

212103231600 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13596395 (or 13596384 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 212103231600 its reverse (6132301212), we get a palindrome (218235532812).

The spelling of 212103231600 in words is "two hundred twelve billion, one hundred three million, two hundred thirty-one thousand, six hundred".