1042331243523 has 4 divisors (see below), whose sum is σ = 1389774991368. Its totient is φ = 694887495680.

The previous prime is 1042331243509. The next prime is 1042331243549. The reversal of 1042331243523 is 3253421332401.

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 1042331243523 - 2⁴ = 1042331243507 is a prime.

It is a super-3 number, since 3×1042331243523³ (a number of 37 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1042331143523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 173721873918 + ... + 173721873923.

It is an arithmetic number, because the mean of its divisors is an integer number (347443747842).

Almost surely, 2^{1042331243523} is an apocalyptic number.

1042331243523 is a deficient number, since it is larger than the sum of its proper divisors (347443747845).

1042331243523 is an equidigital number, since it uses as much as digits as its factorization.

1042331243523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 347443747844.

The product of its (nonzero) digits is 51840, while the sum is 33.

Adding to 1042331243523 its reverse (3253421332401), we get a palindrome (4295752575924).

The spelling of 1042331243523 in words is "one trillion, forty-two billion, three hundred thirty-one million, two hundred forty-three thousand, five hundred twenty-three".