21233303142 has 8 divisors (see below), whose sum is σ = 42466606296. Its totient is φ = 7077767712.

The previous prime is 21233303141. The next prime is 21233303177. The reversal of 21233303142 is 24130333212.

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

21233303142 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233303141) 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, 1769441923 + ... + 1769441934.

It is an arithmetic number, because the mean of its divisors is an integer number (5308325787).

Almost surely, 2^21233303142 is an apocalyptic number.

21233303142 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

21233303142 is a wasteful number, since it uses less digits than its factorization.

21233303142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3538883862.

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 21233303142 its reverse (24130333212), we get a palindrome (45363636354).

The spelling of 21233303142 in words is "twenty-one billion, two hundred thirty-three million, three hundred three thousand, one hundred forty-two".