21402332413303 has 8 divisors (see below), whose sum is σ = 21626667407072. Its totient is φ = 21178072774656.

The previous prime is 21402332413249. The next prime is 21402332413313. The reversal of 21402332413303 is 30331423320412.

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 21402332413303 - 2¹⁷ = 21402332282231 is a prime.

It is a super-2 number, since 2×21402332413303² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21402332413313) 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, 18267675 + ... + 19403932.

It is an arithmetic number, because the mean of its divisors is an integer number (2703333425884).

Almost surely, 2^{21402332413303} is an apocalyptic number.

21402332413303 is a deficient number, since it is larger than the sum of its proper divisors (224334993769).

21402332413303 is an equidigital number, since it uses as much as digits as its factorization.

21402332413303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37677561.

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 21402332413303 its reverse (30331423320412), we get a palindrome (51733755733715).

The spelling of 21402332413303 in words is "twenty-one trillion, four hundred two billion, three hundred thirty-two million, four hundred thirteen thousand, three hundred three".