1042043455523 has 8 divisors (see below), whose sum is σ = 1190939978592. Its totient is φ = 893155225536.

The previous prime is 1042043455507. The next prime is 1042043455529. The reversal of 1042043455523 is 3255543402401.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1042043455523 - 2⁴ = 1042043455507 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1042043455529) 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, 1801640 + ... + 2308677.

It is an arithmetic number, because the mean of its divisors is an integer number (148867497324).

Almost surely, 2^{1042043455523} is an apocalyptic number.

1042043455523 is a deficient number, since it is larger than the sum of its proper divisors (148896523069).

1042043455523 is an equidigital number, since it uses as much as digits as its factorization.

1042043455523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4146541.

The product of its (nonzero) digits is 288000, while the sum is 38.

Adding to 1042043455523 its reverse (3255543402401), we get a palindrome (4297586857924).

The spelling of 1042043455523 in words is "one trillion, forty-two billion, forty-three million, four hundred fifty-five thousand, five hundred twenty-three".