21233112103 has 8 divisors (see below), whose sum is σ = 24858277920. Its totient is φ = 17755912320.

The previous prime is 21233112097. The next prime is 21233112113. The reversal of 21233112103 is 30121133212.

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 21233112103 - 2²¹ = 21231014951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233112113) 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, 36991198 + ... + 36991771.

It is an arithmetic number, because the mean of its divisors is an integer number (3107284740).

Almost surely, 2^21233112103 is an apocalyptic number.

21233112103 is a deficient number, since it is larger than the sum of its proper divisors (3625165817).

21233112103 is an equidigital number, since it uses as much as digits as its factorization.

21233112103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73983017.

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

Adding to 21233112103 its reverse (30121133212), we get a palindrome (51354245315).

The spelling of 21233112103 in words is "twenty-one billion, two hundred thirty-three million, one hundred twelve thousand, one hundred three".