21130231103 has 8 divisors (see below), whose sum is σ = 21384165600. Its totient is φ = 20876663808.

The previous prime is 21130231093. The next prime is 21130231117. The reversal of 21130231103 is 30113203112.

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 21130231103 - 2³² = 16835263807 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21130231163) 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, 24863 + ... + 207071.

It is an arithmetic number, because the mean of its divisors is an integer number (2673020700).

Almost surely, 2^21130231103 is an apocalyptic number.

21130231103 is a deficient number, since it is larger than the sum of its proper divisors (253934497).

21130231103 is a wasteful number, since it uses less digits than its factorization.

21130231103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183601.

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

Adding to 21130231103 its reverse (30113203112), we get a palindrome (51243434215).

The spelling of 21130231103 in words is "twenty-one billion, one hundred thirty million, two hundred thirty-one thousand, one hundred three".