21101301203 has 8 divisors (see below), whose sum is σ = 21619043376. Its totient is φ = 20583705600.

The previous prime is 21101301197. The next prime is 21101301209. The reversal of 21101301203 is 30210310112.

It is an interprime number because it is at equal distance from previous prime (21101301197) and next prime (21101301209).

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

It is not a de Polignac number, because 21101301203 - 2¹⁰ = 21101300179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21101301209) 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, 290108 + ... + 355478.

It is an arithmetic number, because the mean of its divisors is an integer number (2702380422).

Almost surely, 2^21101301203 is an apocalyptic number.

21101301203 is a deficient number, since it is larger than the sum of its proper divisors (517742173).

21101301203 is an equidigital number, since it uses as much as digits as its factorization.

21101301203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73285.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 21101301203 its reverse (30210310112), we get a palindrome (51311611315).

The spelling of 21101301203 in words is "twenty-one billion, one hundred one million, three hundred one thousand, two hundred three".