21003201403 has 8 divisors (see below), whose sum is σ = 21244310640. Its totient is φ = 20762206080.

The previous prime is 21003201347. The next prime is 21003201451. The reversal of 21003201403 is 30410230012.

It is a happy number.

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 21003201403 - 2⁹ = 21003200891 is a prime.

It is a super-2 number, since 2×21003201403² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21003201503) 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, 374943 + ... + 427303.

It is an arithmetic number, because the mean of its divisors is an integer number (2655538830).

Almost surely, 2^21003201403 is an apocalyptic number.

21003201403 is a deficient number, since it is larger than the sum of its proper divisors (241109237).

21003201403 is an equidigital number, since it uses as much as digits as its factorization.

21003201403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56957.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21003201403 its reverse (30410230012), we get a palindrome (51413431415).

The spelling of 21003201403 in words is "twenty-one billion, three million, two hundred one thousand, four hundred three".