1042123502305 has 16 divisors (see below), whose sum is σ = 1252215103680. Its totient is φ = 832587795648.

The previous prime is 1042123502263. The next prime is 1042123502377. The reversal of 1042123502305 is 5032053212401.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1042123502305 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 60852474 + ... + 60869596.

It is an arithmetic number, because the mean of its divisors is an integer number (78263443980).

Almost surely, 2^{1042123502305} is an apocalyptic number.

It is an amenable number.

1042123502305 is a deficient number, since it is larger than the sum of its proper divisors (210091601375).

1042123502305 is a wasteful number, since it uses less digits than its factorization.

1042123502305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32640.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 1042123502305 its reverse (5032053212401), we get a palindrome (6074176714706).

The spelling of 1042123502305 in words is "one trillion, forty-two billion, one hundred twenty-three million, five hundred two thousand, three hundred five".