21332053101 has 16 divisors (see below), whose sum is σ = 30118846464. Its totient is φ = 13383481344.

The previous prime is 21332053097. The next prime is 21332053111. The reversal of 21332053101 is 10135023312.

It is not a de Polignac number, because 21332053101 - 2² = 21332053097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21332053111) 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, 837780 + ... + 862866.

It is an arithmetic number, because the mean of its divisors is an integer number (1882427904).

Almost surely, 2^21332053101 is an apocalyptic number.

It is an amenable number.

21332053101 is a deficient number, since it is larger than the sum of its proper divisors (8786793363).

21332053101 is a wasteful number, since it uses less digits than its factorization.

21332053101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41780.

The product of its (nonzero) digits is 540, while the sum is 21.

Adding to 21332053101 its reverse (10135023312), we get a palindrome (31467076413).

The spelling of 21332053101 in words is "twenty-one billion, three hundred thirty-two million, fifty-three thousand, one hundred one".