21152303230 has 8 divisors (see below), whose sum is σ = 38074145832. Its totient is φ = 8460921288.

The previous prime is 21152303171. The next prime is 21152303231. The reversal of 21152303230 is 3230325112.

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 (21152303231) 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, 1057615152 + ... + 1057615171.

It is an arithmetic number, because the mean of its divisors is an integer number (4759268229).

Almost surely, 2^21152303230 is an apocalyptic number.

21152303230 is a deficient number, since it is larger than the sum of its proper divisors (16921842602).

21152303230 is a wasteful number, since it uses less digits than its factorization.

21152303230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2115230330.

The product of its (nonzero) digits is 1080, while the sum is 22.

Adding to 21152303230 its reverse (3230325112), we get a palindrome (24382628342).

It can be divided in two parts, 21 and 152303230, that added together give a palindrome (152303251).

The spelling of 21152303230 in words is "twenty-one billion, one hundred fifty-two million, three hundred three thousand, two hundred thirty".