42240043323 has 8 divisors (see below), whose sum is σ = 62577842000. Its totient is φ = 28160028864.

The previous prime is 42240043303. The next prime is 42240043331. The reversal of 42240043323 is 32334004224.

42240043323 is a `hidden beast` number, since 4 + 224 + 0 + 0 + 433 + 2 + 3 = 666.

It is not a de Polignac number, because 42240043323 - 2⁸ = 42240043067 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 1564446049 = 42240043323 / (4 + 2 + 2 + 4 + 0 + 0 + 4 + 3 + 3 + 2 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42240043303) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782222998 + ... + 782223051.

It is an arithmetic number, because the mean of its divisors is an integer number (7822230250).

Almost surely, 2^42240043323 is an apocalyptic number.

42240043323 is a deficient number, since it is larger than the sum of its proper divisors (20337798677).

42240043323 is a wasteful number, since it uses less digits than its factorization.

42240043323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1564446058 (or 1564446052 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 27.

Adding to 42240043323 its reverse (32334004224), we get a palindrome (74574047547).

The spelling of 42240043323 in words is "forty-two billion, two hundred forty million, forty-three thousand, three hundred twenty-three".