21401032301 has 16 divisors (see below), whose sum is σ = 24753791808. Its totient is φ = 18285945600.

The previous prime is 21401032291. The next prime is 21401032307. The reversal of 21401032301 is 10323010412.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21401032301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 21401032301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21401032307) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59006 + ... + 215136.

It is an arithmetic number, because the mean of its divisors is an integer number (1547111988).

Almost surely, 2^21401032301 is an apocalyptic number.

It is an amenable number.

21401032301 is a deficient number, since it is larger than the sum of its proper divisors (3352759507).

21401032301 is a wasteful number, since it uses less digits than its factorization.

21401032301 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156892.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 21401032301 its reverse (10323010412), we get a palindrome (31724042713).

The spelling of 21401032301 in words is "twenty-one billion, four hundred one million, thirty-two thousand, three hundred one".