21632202354013 has 8 divisors (see below), whose sum is σ = 22572890572608. Its totient is φ = 20691527275584.

The previous prime is 21632202354011. The next prime is 21632202354023. The reversal of 21632202354013 is 31045320223612.

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

It is a cyclic number.

It is not a de Polignac number, because 21632202354013 - 2¹ = 21632202354011 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21632202354013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21632202354011) 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, 155770 + ... + 6579412.

It is an arithmetic number, because the mean of its divisors is an integer number (2821611321576).

Almost surely, 2^{21632202354013} is an apocalyptic number.

21632202354013 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21632202354013 is a deficient number, since it is larger than the sum of its proper divisors (940688218595).

21632202354013 is a wasteful number, since it uses less digits than its factorization.

21632202354013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6570083.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 21632202354013 its reverse (31045320223612), we get a palindrome (52677522577625).

The spelling of 21632202354013 in words is "twenty-one trillion, six hundred thirty-two billion, two hundred two million, three hundred fifty-four thousand, thirteen".