21140300401 has 4 divisors (see below), whose sum is σ = 23062145904. Its totient is φ = 19218454900.

The previous prime is 21140300383. The next prime is 21140300417. The reversal of 21140300401 is 10400304112.

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.

It is a cyclic number.

It is not a de Polignac number, because 21140300401 - 2⁵ = 21140300369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21140301401) 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, 960922735 + ... + 960922756.

It is an arithmetic number, because the mean of its divisors is an integer number (5765536476).

Almost surely, 2^21140300401 is an apocalyptic number.

It is an amenable number.

21140300401 is a deficient number, since it is larger than the sum of its proper divisors (1921845503).

21140300401 is a wasteful number, since it uses less digits than its factorization.

21140300401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1921845502.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 21140300401 its reverse (10400304112), we get a palindrome (31540604513).

The spelling of 21140300401 in words is "twenty-one billion, one hundred forty million, three hundred thousand, four hundred one".