21303241403099 has 4 divisors (see below), whose sum is σ = 21375948711936. Its totient is φ = 21230534094264.

The previous prime is 21303241403083. The next prime is 21303241403107. The reversal of 21303241403099 is 99030414230312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21303241403099 - 2⁴ = 21303241403083 is a prime.

It is a super-2 number, since 2×21303241403099² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21303241403039) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36353653979 + ... + 36353654564.

It is an arithmetic number, because the mean of its divisors is an integer number (5343987177984).

Almost surely, 2^{21303241403099} is an apocalyptic number.

21303241403099 is a deficient number, since it is larger than the sum of its proper divisors (72707308837).

21303241403099 is an equidigital number, since it uses as much as digits as its factorization.

21303241403099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72707308836.

The product of its (nonzero) digits is 139968, while the sum is 41.

The spelling of 21303241403099 in words is "twenty-one trillion, three hundred three billion, two hundred forty-one million, four hundred three thousand, ninety-nine".