21010211342 has 8 divisors (see below), whose sum is σ = 31593910032. Its totient is φ = 10478908000.

The previous prime is 21010211333. The next prime is 21010211353. The reversal of 21010211342 is 24311201012.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21010211342.

It is a congruent number.

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, 13097834 + ... + 13099437.

It is an arithmetic number, because the mean of its divisors is an integer number (3949238754).

Almost surely, 2^21010211342 is an apocalyptic number.

21010211342 is a deficient number, since it is larger than the sum of its proper divisors (10583698690).

21010211342 is a wasteful number, since it uses less digits than its factorization.

21010211342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26197674.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 21010211342 its reverse (24311201012), we get a palindrome (45321412354).

The spelling of 21010211342 in words is "twenty-one billion, ten million, two hundred eleven thousand, three hundred forty-two".