22443031142 has 16 divisors (see below), whose sum is σ = 38475723552. Its totient is φ = 9617952960.

The previous prime is 22443031109. The next prime is 22443031189. The reversal of 22443031142 is 24113034422.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 440378 + ... + 488690.

It is an arithmetic number, because the mean of its divisors is an integer number (2404732722).

Almost surely, 2^22443031142 is an apocalyptic number.

22443031142 is a deficient number, since it is larger than the sum of its proper divisors (16032692410).

22443031142 is a wasteful number, since it uses less digits than its factorization.

22443031142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81503.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 22443031142 its reverse (24113034422), we get a palindrome (46556065564).

The spelling of 22443031142 in words is "twenty-two billion, four hundred forty-three million, thirty-one thousand, one hundred forty-two".