21412303142 has 8 divisors (see below), whose sum is σ = 32191618800. Its totient is φ = 10681763544.

The previous prime is 21412303117. The next prime is 21412303151. The reversal of 21412303142 is 24130321412.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12192917 + ... + 12194672.

It is an arithmetic number, because the mean of its divisors is an integer number (4023952350).

Almost surely, 2^21412303142 is an apocalyptic number.

21412303142 is a deficient number, since it is larger than the sum of its proper divisors (10779315658).

21412303142 is a wasteful number, since it uses less digits than its factorization.

21412303142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24388030.

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

Adding to 21412303142 its reverse (24130321412), we get a palindrome (45542624554).

The spelling of 21412303142 in words is "twenty-one billion, four hundred twelve million, three hundred three thousand, one hundred forty-two".