21342032030 has 24 divisors (see below), whose sum is σ = 42225477336. Its totient is φ = 7760738480.

The previous prime is 21342032027. The next prime is 21342032039. The reversal of 21342032030 is 3023024312.

It is a junction number, because it is equal to n+sod(n) for n = 21342031993 and 21342032011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21342032039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8817812 + ... + 8820231.

It is an arithmetic number, because the mean of its divisors is an integer number (1759394889).

Almost surely, 2^21342032030 is an apocalyptic number.

21342032030 is a deficient number, since it is larger than the sum of its proper divisors (20883445306).

21342032030 is a wasteful number, since it uses less digits than its factorization.

21342032030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17638072 (or 17638061 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21342032030 its reverse (3023024312), we get a palindrome (24365056342).

The spelling of 21342032030 in words is "twenty-one billion, three hundred forty-two million, thirty-two thousand, thirty".