21003010342 has 8 divisors (see below), whose sum is σ = 32098940496. Its totient is φ = 10303363512.

The previous prime is 21003010339. The next prime is 21003010351. The reversal of 21003010342 is 24301030012.

It is a happy number.

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

It is a super-2 number, since 2×21003010342² (a number of 21 digits) contains 22 as substring.

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, 99070698 + ... + 99070909.

It is an arithmetic number, because the mean of its divisors is an integer number (4012367562).

Almost surely, 2^21003010342 is an apocalyptic number.

21003010342 is a deficient number, since it is larger than the sum of its proper divisors (11095930154).

21003010342 is a wasteful number, since it uses less digits than its factorization.

21003010342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198141662.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 21003010342 its reverse (24301030012), we get a palindrome (45304040354).

The spelling of 21003010342 in words is "twenty-one billion, three million, ten thousand, three hundred forty-two".