21142430014 has 16 divisors (see below), whose sum is σ = 31825530000. Its totient is φ = 10533968640.

The previous prime is 21142429951. The next prime is 21142430051. The reversal of 21142430014 is 41003424112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 920409 + ... + 943099.

It is an arithmetic number, because the mean of its divisors is an integer number (1989095625).

Almost surely, 2^21142430014 is an apocalyptic number.

21142430014 is a deficient number, since it is larger than the sum of its proper divisors (10683099986).

21142430014 is a wasteful number, since it uses less digits than its factorization.

21142430014 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24315.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21142430014 its reverse (41003424112), we get a palindrome (62145854126).

The spelling of 21142430014 in words is "twenty-one billion, one hundred forty-two million, four hundred thirty thousand, fourteen".