21133313230 has 8 divisors (see below), whose sum is σ = 38039963832. Its totient is φ = 8453325288.

The previous prime is 21133313221. The next prime is 21133313239. The reversal of 21133313230 is 3231333112.

It is an interprime number because it is at equal distance from previous prime (21133313221) and next prime (21133313239).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21133313239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1056665652 + ... + 1056665671.

It is an arithmetic number, because the mean of its divisors is an integer number (4754995479).

Almost surely, 2^21133313230 is an apocalyptic number.

21133313230 is a deficient number, since it is larger than the sum of its proper divisors (16906650602).

21133313230 is a wasteful number, since it uses less digits than its factorization.

21133313230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2113331330.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 21133313230 its reverse (3231333112), we get a palindrome (24364646342).

The spelling of 21133313230 in words is "twenty-one billion, one hundred thirty-three million, three hundred thirteen thousand, two hundred thirty".