21132311011103 has 16 divisors (see below), whose sum is σ = 21659871393216. Its totient is φ = 20605332168960.

The previous prime is 21132311011087. The next prime is 21132311011121. The reversal of 21132311011103 is 30111011323112.

It is a cyclic number.

It is not a de Polignac number, because 21132311011103 - 2⁴ = 21132311011087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132311011193) 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, 576532325 + ... + 576568977.

It is an arithmetic number, because the mean of its divisors is an integer number (1353741962076).

Almost surely, 2^{21132311011103} is an apocalyptic number.

21132311011103 is a deficient number, since it is larger than the sum of its proper divisors (527560382113).

21132311011103 is a wasteful number, since it uses less digits than its factorization.

21132311011103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44194.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 21132311011103 its reverse (30111011323112), we get a palindrome (51243322334215).

The spelling of 21132311011103 in words is "twenty-one trillion, one hundred thirty-two billion, three hundred eleven million, eleven thousand, one hundred three".