21322013103 has 16 divisors (see below), whose sum is σ = 31592582400. Its totient is φ = 14212688760.

The previous prime is 21322013087. The next prime is 21322013137. The reversal of 21322013103 is 30131022312.

It is not a de Polignac number, because 21322013103 - 2⁴ = 21322013087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322013203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 156318 + ... + 258996.

It is an arithmetic number, because the mean of its divisors is an integer number (1974536400).

Almost surely, 2^21322013103 is an apocalyptic number.

21322013103 is a deficient number, since it is larger than the sum of its proper divisors (10270569297).

21322013103 is a wasteful number, since it uses less digits than its factorization.

21322013103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110379 (or 110373 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21322013103 its reverse (30131022312), we get a palindrome (51453035415).

The spelling of 21322013103 in words is "twenty-one billion, three hundred twenty-two million, thirteen thousand, one hundred three".