22431312030145 has 4 divisors (see below), whose sum is σ = 26917574436180. Its totient is φ = 17945049624112.

The previous prime is 22431312030137. The next prime is 22431312030161. The reversal of 22431312030145 is 54103021313422.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17517162993201 + 4914149036944 = 4185351^2 + 2216788^2 .

It is a cyclic number.

It is not a de Polignac number, because 22431312030145 - 2³ = 22431312030137 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2243131203010 + ... + 2243131203019.

It is an arithmetic number, because the mean of its divisors is an integer number (6729393609045).

Almost surely, 2^{22431312030145} is an apocalyptic number.

It is an amenable number.

22431312030145 is a deficient number, since it is larger than the sum of its proper divisors (4486262406035).

22431312030145 is an equidigital number, since it uses as much as digits as its factorization.

22431312030145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4486262406034.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 22431312030145 its reverse (54103021313422), we get a palindrome (76534333343567).

The spelling of 22431312030145 in words is "twenty-two trillion, four hundred thirty-one billion, three hundred twelve million, thirty thousand, one hundred forty-five".