1042240402123 has 8 divisors (see below), whose sum is σ = 1078070236160. Its totient is φ = 1006548641640.

The previous prime is 1042240402117. The next prime is 1042240402127. The reversal of 1042240402123 is 3212040422401.

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

It is a cyclic number.

It is not a de Polignac number, because 1042240402123 - 2²¹ = 1042238304971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1042240402127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34503033 + ... + 34533226.

It is an arithmetic number, because the mean of its divisors is an integer number (134758779520).

Almost surely, 2^{1042240402123} is an apocalyptic number.

1042240402123 is a deficient number, since it is larger than the sum of its proper divisors (35829834037).

1042240402123 is an equidigital number, since it uses as much as digits as its factorization.

1042240402123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69036777.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 1042240402123 its reverse (3212040422401), we get a palindrome (4254280824524).

The spelling of 1042240402123 in words is "one trillion, forty-two billion, two hundred forty million, four hundred two thousand, one hundred twenty-three".