21001300130203 has 8 divisors (see below), whose sum is σ = 21914472217248. Its totient is φ = 20088134049984.

The previous prime is 21001300130189. The next prime is 21001300130227. The reversal of 21001300130203 is 30203100310012.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21001300130203 - 2³⁷ = 20863861176731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21001300130303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6564751 + ... + 9224887.

It is an arithmetic number, because the mean of its divisors is an integer number (2739309027156).

Almost surely, 2^{21001300130203} is an apocalyptic number.

21001300130203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21001300130203 is a deficient number, since it is larger than the sum of its proper divisors (913172087045).

21001300130203 is a wasteful number, since it uses less digits than its factorization.

21001300130203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3003413.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 21001300130203 its reverse (30203100310012), we get a palindrome (51204400440215).

The spelling of 21001300130203 in words is "twenty-one trillion, one billion, three hundred million, one hundred thirty thousand, two hundred three".