21233141242 has 16 divisors (see below), whose sum is σ = 33238356480. Its totient is φ = 10153796752.

The previous prime is 21233141239. The next prime is 21233141273. The reversal of 21233141242 is 24214133212.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 471063 + ... + 514165.

It is an arithmetic number, because the mean of its divisors is an integer number (2077397280).

Almost surely, 2^21233141242 is an apocalyptic number.

21233141242 is a deficient number, since it is larger than the sum of its proper divisors (12005215238).

21233141242 is a wasteful number, since it uses less digits than its factorization.

21233141242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53837.

The product of its digits is 2304, while the sum is 25.

Adding to 21233141242 its reverse (24214133212), we get a palindrome (45447274454).

The spelling of 21233141242 in words is "twenty-one billion, two hundred thirty-three million, one hundred forty-one thousand, two hundred forty-two".