21342000045 has 16 divisors (see below), whose sum is σ = 34614971712. Its totient is φ = 11226476160.

The previous prime is 21341999981. The next prime is 21342000077. The reversal of 21342000045 is 54000024312.

It is not a de Polignac number, because 21342000045 - 2⁶ = 21341999981 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21341999985 and 21342000030.

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 15 ways as a sum of consecutive naturals, for example, 9744111 + ... + 9746300.

It is an arithmetic number, because the mean of its divisors is an integer number (2163435732).

Almost surely, 2^21342000045 is an apocalyptic number.

It is an amenable number.

21342000045 is a deficient number, since it is larger than the sum of its proper divisors (13272971667).

21342000045 is a wasteful number, since it uses less digits than its factorization.

21342000045 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19490492.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 21342000045 its reverse (54000024312), we get a palindrome (75342024357).

The spelling of 21342000045 in words is "twenty-one billion, three hundred forty-two million, forty-five", and thus it is an aban number.