21130003342 has 48 divisors (see below), whose sum is σ = 37317384720. Its totient is φ = 8946104832.

The previous prime is 21130003319. The next prime is 21130003357. The reversal of 21130003342 is 24330003112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6262768 + ... + 6266140.

It is an arithmetic number, because the mean of its divisors is an integer number (777445515).

Almost surely, 2^21130003342 is an apocalyptic number.

21130003342 is a deficient number, since it is larger than the sum of its proper divisors (16187381378).

21130003342 is a wasteful number, since it uses less digits than its factorization.

21130003342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4145 (or 4138 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21130003342 its reverse (24330003112), we get a palindrome (45460006454).

The spelling of 21130003342 in words is "twenty-one billion, one hundred thirty million, three thousand, three hundred forty-two".