21310132103 has 8 divisors (see below), whose sum is σ = 22952021568. Its totient is φ = 19668621024.

The previous prime is 21310132097. The next prime is 21310132159. The reversal of 21310132103 is 30123101312.

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

It is not a de Polignac number, because 21310132103 - 2¹⁶ = 21310066567 is a prime.

It is a super-2 number, since 2×21310132103² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310132903) 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, 28301 + ... + 208377.

It is an arithmetic number, because the mean of its divisors is an integer number (2869002696).

Almost surely, 2^21310132103 is an apocalyptic number.

21310132103 is a deficient number, since it is larger than the sum of its proper divisors (1641889465).

21310132103 is a wasteful number, since it uses less digits than its factorization.

21310132103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189193.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 21310132103 its reverse (30123101312), we get a palindrome (51433233415).

The spelling of 21310132103 in words is "twenty-one billion, three hundred ten million, one hundred thirty-two thousand, one hundred three".