21342132230 has 16 divisors (see below), whose sum is σ = 38430564480. Its totient is φ = 8533580352.

The previous prime is 21342132191. The next prime is 21342132241. The reversal of 21342132230 is 3223124312.

It is a junction number, because it is equal to n+sod(n) for n = 21342132196 and 21342132205.

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, 381590 + ... + 433929.

It is an arithmetic number, because the mean of its divisors is an integer number (2401910280).

Almost surely, 2^21342132230 is an apocalyptic number.

21342132230 is a deficient number, since it is larger than the sum of its proper divisors (17088432250).

21342132230 is a wasteful number, since it uses less digits than its factorization.

21342132230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 818143.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 21342132230 its reverse (3223124312), we get a palindrome (24565256542).

The spelling of 21342132230 in words is "twenty-one billion, three hundred forty-two million, one hundred thirty-two thousand, two hundred thirty".