21342010019 has 8 divisors (see below), whose sum is σ = 23283251712. Its totient is φ = 19400944840.

The previous prime is 21342010003. The next prime is 21342010057. The reversal of 21342010019 is 91001024312.

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

It is a cyclic number.

It is not a de Polignac number, because 21342010019 - 2⁴ = 21342010003 is a prime.

It is a super-2 number, since 2×21342010019² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21342009976 and 21342010003.

It is not an unprimeable number, because it can be changed into a prime (21342030019) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 433622 + ... + 480324.

It is an arithmetic number, because the mean of its divisors is an integer number (2910406464).

Almost surely, 2^21342010019 is an apocalyptic number.

21342010019 is a deficient number, since it is larger than the sum of its proper divisors (1941241693).

21342010019 is a wasteful number, since it uses less digits than its factorization.

21342010019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88257.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 21342010019 in words is "twenty-one billion, three hundred forty-two million, ten thousand, nineteen".