21343122410 has 8 divisors (see below), whose sum is σ = 38417620356. Its totient is φ = 8537248960.

The previous prime is 21343122407. The next prime is 21343122461. The reversal of 21343122410 is 1422134312.

It can be written as a sum of positive squares in 2 ways, for example, as 20731104289 + 612018121 = 143983^2 + 24739^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1067156111 + ... + 1067156130.

Almost surely, 2^21343122410 is an apocalyptic number.

21343122410 is a deficient number, since it is larger than the sum of its proper divisors (17074497946).

21343122410 is a wasteful number, since it uses less digits than its factorization.

21343122410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2134312248.

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

Adding to 21343122410 its reverse (1422134312), we get a palindrome (22765256722).

The spelling of 21343122410 in words is "twenty-one billion, three hundred forty-three million, one hundred twenty-two thousand, four hundred ten".