21132103113 has 24 divisors (see below), whose sum is σ = 35257843296. Its totient is φ = 12053961600.

The previous prime is 21132103073. The next prime is 21132103121. The reversal of 21132103113 is 31130123112.

It is not a de Polignac number, because 21132103113 - 2³⁰ = 20058361289 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21132103513) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6276423 + ... + 6279788.

It is an arithmetic number, because the mean of its divisors is an integer number (1469076804).

Almost surely, 2^21132103113 is an apocalyptic number.

It is an amenable number.

21132103113 is a deficient number, since it is larger than the sum of its proper divisors (14125740183).

21132103113 is a wasteful number, since it uses less digits than its factorization.

21132103113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12556245 (or 12556242 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 21132103113 its reverse (31130123112), we get a palindrome (52262226225).

The spelling of 21132103113 in words is "twenty-one billion, one hundred thirty-two million, one hundred three thousand, one hundred thirteen".