22431330142 has 16 divisors (see below), whose sum is σ = 37214557632. Its totient is φ = 10073112480.

The previous prime is 22431330101. The next prime is 22431330149. The reversal of 22431330142 is 24103313422.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22431330149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11657734 + ... + 11659657.

It is an arithmetic number, because the mean of its divisors is an integer number (2325909852).

Almost surely, 2^22431330142 is an apocalyptic number.

22431330142 is a deficient number, since it is larger than the sum of its proper divisors (14783227490).

22431330142 is a wasteful number, since it uses less digits than its factorization.

22431330142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23317443.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 22431330142 its reverse (24103313422), we get a palindrome (46534643564).

The spelling of 22431330142 in words is "twenty-two billion, four hundred thirty-one million, three hundred thirty thousand, one hundred forty-two".