21303230334 has 16 divisors (see below), whose sum is σ = 43757987088. Its totient is φ = 6909155712.

The previous prime is 21303230243. The next prime is 21303230353. The reversal of 21303230334 is 43303230312.

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, 47980027 + ... + 47980470.

It is an arithmetic number, because the mean of its divisors is an integer number (2734874193).

Almost surely, 2^21303230334 is an apocalyptic number.

21303230334 is an abundant number, since it is smaller than the sum of its proper divisors (22454756754).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21303230334 is a wasteful number, since it uses less digits than its factorization.

21303230334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95960539.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 21303230334 its reverse (43303230312), we get a palindrome (64606460646).

The spelling of 21303230334 in words is "twenty-one billion, three hundred three million, two hundred thirty thousand, three hundred thirty-four".