21413301401 has 4 divisors (see below), whose sum is σ = 21413613312. Its totient is φ = 21412989492.

The previous prime is 21413301383. The next prime is 21413301407. The reversal of 21413301401 is 10410331412.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21413301401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21413301407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2921 + ... + 206966.

It is an arithmetic number, because the mean of its divisors is an integer number (5353403328).

Almost surely, 2^21413301401 is an apocalyptic number.

It is an amenable number.

21413301401 is a deficient number, since it is larger than the sum of its proper divisors (311911).

21413301401 is a wasteful number, since it uses less digits than its factorization.

21413301401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311910.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21413301401 its reverse (10410331412), we get a palindrome (31823632813).

The spelling of 21413301401 in words is "twenty-one billion, four hundred thirteen million, three hundred one thousand, four hundred one".