22431404004232 has 8 divisors (see below), whose sum is σ = 42058882507950. Its totient is φ = 11215702002112.

The previous prime is 22431404004221. The next prime is 22431404004371. The reversal of 22431404004232 is 23240040413422.

It can be written as a sum of positive squares in only one way, i.e., 20450781240516 + 1980622763716 = 4522254^2 + 1407346^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 22431404004194 and 22431404004203.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1401962750257 + ... + 1401962750272.

Almost surely, 2^{22431404004232} is an apocalyptic number.

It is an amenable number.

22431404004232 is a deficient number, since it is larger than the sum of its proper divisors (19627478503718).

22431404004232 is a wasteful number, since it uses less digits than its factorization.

22431404004232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803925500535 (or 2803925500531 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 31.

Adding to 22431404004232 its reverse (23240040413422), we get a palindrome (45671444417654).

The spelling of 22431404004232 in words is "twenty-two trillion, four hundred thirty-one billion, four hundred four million, four thousand, two hundred thirty-two".