21312132200030 has 64 divisors (see below), whose sum is σ = 44737981516800. Its totient is φ = 7306829863200.

The previous prime is 21312132200027. The next prime is 21312132200069. The reversal of 21312132200030 is 3000223121312.

It is a junction number, because it is equal to n+sod(n) for n = 21312132199975 and 21312132200011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 238103585 + ... + 238193075.

It is an arithmetic number, because the mean of its divisors is an integer number (699030961200).

Almost surely, 2^{21312132200030} is an apocalyptic number.

21312132200030 is an abundant number, since it is smaller than the sum of its proper divisors (23425849316770).

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

21312132200030 is an equidigital number, since it uses as much as digits as its factorization.

21312132200030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158950 (or 158936 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21312132200030 its reverse (3000223121312), we get a palindrome (24312355321342).

The spelling of 21312132200030 in words is "twenty-one trillion, three hundred twelve billion, one hundred thirty-two million, two hundred thousand, thirty".