1223131104424 has 16 divisors (see below), whose sum is σ = 2293407818100. Its totient is φ = 611555686272.

The previous prime is 1223131104367. The next prime is 1223131104427. The reversal of 1223131104424 is 4244011313221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1219147222500 + 3983881924 = 1104150^2 + 63118^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1223131104392 and 1223131104401.

It is not an unprimeable number, because it can be changed into a prime (1223131104427) 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, 692397 + ... + 1710460.

Almost surely, 2^{1223131104424} is an apocalyptic number.

It is an amenable number.

1223131104424 is a deficient number, since it is larger than the sum of its proper divisors (1070276713676).

1223131104424 is a wasteful number, since it uses less digits than its factorization.

1223131104424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2466492 (or 2466488 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1223131104424 its reverse (4244011313221), we get a palindrome (5467142417645).

The spelling of 1223131104424 in words is "one trillion, two hundred twenty-three billion, one hundred thirty-one million, one hundred four thousand, four hundred twenty-four".