22131343042 has 8 divisors (see below), whose sum is σ = 33310315836. Its totient is φ = 11027904432.

The previous prime is 22131343027. The next prime is 22131343049. The reversal of 22131343042 is 24034313122.

It can be written as a sum of positive squares in 2 ways, for example, as 20719011481 + 1412331561 = 143941^2 + 37581^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 22131342998 and 22131343016.

It is not an unprimeable number, because it can be changed into a prime (22131343049) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18882813 + ... + 18883984.

Almost surely, 2^22131343042 is an apocalyptic number.

22131343042 is a deficient number, since it is larger than the sum of its proper divisors (11178972794).

22131343042 is a wasteful number, since it uses less digits than its factorization.

22131343042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37767092.

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

Adding to 22131343042 its reverse (24034313122), we get a palindrome (46165656164).

The spelling of 22131343042 in words is "twenty-two billion, one hundred thirty-one million, three hundred forty-three thousand, forty-two".