21354400301 has 16 divisors (see below), whose sum is σ = 24068239104. Its totient is φ = 18798683904.

The previous prime is 21354400297. The next prime is 21354400303. The reversal of 21354400301 is 10300445312.

It is not a de Polignac number, because 21354400301 - 2² = 21354400297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21354400303) 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 15 ways as a sum of consecutive naturals, for example, 5201 + ... + 206726.

It is an arithmetic number, because the mean of its divisors is an integer number (1504264944).

Almost surely, 2^21354400301 is an apocalyptic number.

It is an amenable number.

21354400301 is a deficient number, since it is larger than the sum of its proper divisors (2713838803).

21354400301 is a wasteful number, since it uses less digits than its factorization.

21354400301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212300.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 21354400301 its reverse (10300445312), we get a palindrome (31654845613).

The spelling of 21354400301 in words is "twenty-one billion, three hundred fifty-four million, four hundred thousand, three hundred one".