21301312100032 has 14 divisors (see below), whose sum is σ = 42269791198628. Its totient is φ = 10650656049984.

The previous prime is 21301312099973. The next prime is 21301312100039. The reversal of 21301312100032 is 23000121310312.

It is a junction number, because it is equal to n+sod(n) for n = 21301312099982 and 21301312100009.

It is not an unprimeable number, because it can be changed into a prime (21301312100039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 166416500718 + ... + 166416500845.

It is an arithmetic number, because the mean of its divisors is an integer number (3019270799902).

Almost surely, 2^{21301312100032} is an apocalyptic number.

It is an amenable number.

21301312100032 is a deficient number, since it is larger than the sum of its proper divisors (20968479098596).

21301312100032 is an equidigital number, since it uses as much as digits as its factorization.

21301312100032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 332833001575 (or 332833001565 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21301312100032 its reverse (23000121310312), we get a palindrome (44301433410344).

The spelling of 21301312100032 in words is "twenty-one trillion, three hundred one billion, three hundred twelve million, one hundred thousand, thirty-two".