21322310103 has 16 divisors (see below), whose sum is σ = 32962026240. Its totient is φ = 13596835032.

The previous prime is 21322310077. The next prime is 21322310123. The reversal of 21322310103 is 30101322312.

21322310103 is a `hidden beast` number, since 21 + 322 + 310 + 10 + 3 = 666.

It is not a de Polignac number, because 21322310103 - 2⁵ = 21322310071 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322310123) 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, 17167101 + ... + 17168342.

It is an arithmetic number, because the mean of its divisors is an integer number (2060126640).

Almost surely, 2^21322310103 is an apocalyptic number.

21322310103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

21322310103 is a deficient number, since it is larger than the sum of its proper divisors (11639716137).

21322310103 is a wasteful number, since it uses less digits than its factorization.

21322310103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34335475 (or 34335469 counting only the distinct ones).

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

Adding to 21322310103 its reverse (30101322312), we get a palindrome (51423632415).

The spelling of 21322310103 in words is "twenty-one billion, three hundred twenty-two million, three hundred ten thousand, one hundred three".