21369260101 has 12 divisors (see below), whose sum is σ = 25659995520. Its totient is φ = 17725652280.

The previous prime is 21369260093. The next prime is 21369260149. The reversal of 21369260101 is 10106296312.

It is not a de Polignac number, because 21369260101 - 2³ = 21369260093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21369260701) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7032471 + ... + 7035508.

It is an arithmetic number, because the mean of its divisors is an integer number (2138332960).

Almost surely, 2^21369260101 is an apocalyptic number.

It is an amenable number.

21369260101 is a deficient number, since it is larger than the sum of its proper divisors (4290735419).

21369260101 is a wasteful number, since it uses less digits than its factorization.

21369260101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14068024 (or 14068017 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 31.

The spelling of 21369260101 in words is "twenty-one billion, three hundred sixty-nine million, two hundred sixty thousand, one hundred one".