22440131042243 has 4 divisors (see below), whose sum is σ = 22987451311608. Its totient is φ = 21892810772880.

The previous prime is 22440131042233. The next prime is 22440131042249. The reversal of 22440131042243 is 34224013104422.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 22440131042243 - 2¹² = 22440131038147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22440131042249) 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, 273660134621 + ... + 273660134702.

It is an arithmetic number, because the mean of its divisors is an integer number (5746862827902).

Almost surely, 2^{22440131042243} is an apocalyptic number.

22440131042243 is a deficient number, since it is larger than the sum of its proper divisors (547320269365).

22440131042243 is an equidigital number, since it uses as much as digits as its factorization.

22440131042243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 547320269364.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 22440131042243 its reverse (34224013104422), we get a palindrome (56664144146665).

The spelling of 22440131042243 in words is "twenty-two trillion, four hundred forty billion, one hundred thirty-one million, forty-two thousand, two hundred forty-three".