21110313403 has 8 divisors (see below), whose sum is σ = 21874688000. Its totient is φ = 20358367848.

The previous prime is 21110313383. The next prime is 21110313449. The reversal of 21110313403 is 30431301112.

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

It is a cyclic number.

It is not a de Polignac number, because 21110313403 - 2²⁵ = 21076758971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21110313463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3103803 + ... + 3110596.

It is an arithmetic number, because the mean of its divisors is an integer number (2734336000).

Almost surely, 2^21110313403 is an apocalyptic number.

21110313403 is a deficient number, since it is larger than the sum of its proper divisors (764374597).

21110313403 is an equidigital number, since it uses as much as digits as its factorization.

21110313403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6214521.

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

Adding to 21110313403 its reverse (30431301112), we get a palindrome (51541614515).

The spelling of 21110313403 in words is "twenty-one billion, one hundred ten million, three hundred thirteen thousand, four hundred three".