1042044431523 has 4 divisors (see below), whose sum is σ = 1389392575368. Its totient is φ = 694696287680.

The previous prime is 1042044431453. The next prime is 1042044431543. The reversal of 1042044431523 is 3251344402401.

1042044431523 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1042044431523 - 2²¹ = 1042042334371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1042044431543) 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, 173674071918 + ... + 173674071923.

It is an arithmetic number, because the mean of its divisors is an integer number (347348143842).

Almost surely, 2^{1042044431523} is an apocalyptic number.

1042044431523 is a deficient number, since it is larger than the sum of its proper divisors (347348143845).

1042044431523 is an equidigital number, since it uses as much as digits as its factorization.

1042044431523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347348143844.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 1042044431523 its reverse (3251344402401), we get a palindrome (4293388833924).

The spelling of 1042044431523 in words is "one trillion, forty-two billion, forty-four million, four hundred thirty-one thousand, five hundred twenty-three".