21344311202 has 8 divisors (see below), whose sum is σ = 32017591596. Its totient is φ = 10671780672.

The previous prime is 21344311187. The next prime is 21344311217. The reversal of 21344311202 is 20211344312.

It is an interprime number because it is at equal distance from previous prime (21344311187) and next prime (21344311217).

It can be written as a sum of positive squares in 2 ways, for example, as 21143777281 + 200533921 = 145409^2 + 14161^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 109883 + ... + 234014.

Almost surely, 2^21344311202 is an apocalyptic number.

21344311202 is a deficient number, since it is larger than the sum of its proper divisors (10673280394).

21344311202 is a wasteful number, since it uses less digits than its factorization.

21344311202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374932.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 21344311202 its reverse (20211344312), we get a palindrome (41555655514).

The spelling of 21344311202 in words is "twenty-one billion, three hundred forty-four million, three hundred eleven thousand, two hundred two".