21310110223003 has 4 divisors (see below), whose sum is σ = 24354411683440. Its totient is φ = 18265808762568.

The previous prime is 21310110222977. The next prime is 21310110223013. The reversal of 21310110223003 is 30032201101312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21310110223003 - 2²⁵ = 21310076668571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21310110223013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1522150730208 + ... + 1522150730221.

It is an arithmetic number, because the mean of its divisors is an integer number (6088602920860).

Almost surely, 2^{21310110223003} is an apocalyptic number.

21310110223003 is a deficient number, since it is larger than the sum of its proper divisors (3044301460437).

21310110223003 is an equidigital number, since it uses as much as digits as its factorization.

21310110223003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3044301460436.

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

Adding to 21310110223003 its reverse (30032201101312), we get a palindrome (51342311324315).

The spelling of 21310110223003 in words is "twenty-one trillion, three hundred ten billion, one hundred ten million, two hundred twenty-three thousand, three".