21003351359 has 2 divisors, whose sum is σ = 21003351360. Its totient is φ = 21003351358.

The previous prime is 21003351323. The next prime is 21003351427. The reversal of 21003351359 is 95315330012.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21003351359 is a prime.

It is a super-2 number, since 2×21003351359² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21003353359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10501675679 + 10501675680.

It is an arithmetic number, because the mean of its divisors is an integer number (10501675680).

Almost surely, 2^21003351359 is an apocalyptic number.

21003351359 is a deficient number, since it is larger than the sum of its proper divisors (1).

21003351359 is an equidigital number, since it uses as much as digits as its factorization.

21003351359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12150, while the sum is 32.

The spelling of 21003351359 in words is "twenty-one billion, three million, three hundred fifty-one thousand, three hundred fifty-nine".