21232101111103 has 8 divisors (see below), whose sum is σ = 21549077250480. Its totient is φ = 20915127298560.

The previous prime is 21232101111061. The next prime is 21232101111107. The reversal of 21232101111103 is 30111110123212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21232101111103 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 (21232101111107) 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, 28795743 + ... + 29523871.

It is an arithmetic number, because the mean of its divisors is an integer number (2693634656310).

Almost surely, 2^{21232101111103} is an apocalyptic number.

21232101111103 is a deficient number, since it is larger than the sum of its proper divisors (316976139377).

21232101111103 is an equidigital number, since it uses as much as digits as its factorization.

21232101111103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1163417.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 21232101111103 its reverse (30111110123212), we get a palindrome (51343211234315).

The spelling of 21232101111103 in words is "twenty-one trillion, two hundred thirty-two billion, one hundred one million, one hundred eleven thousand, one hundred three".