1047123503 has 8 divisors (see below), whose sum is σ = 1099400880. Its totient is φ = 995924160.

The previous prime is 1047123457. The next prime is 1047123521. The reversal of 1047123503 is 3053217401.

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 1047123503 - 2²⁰ = 1046074927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1047123403) 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 7 ways as a sum of consecutive naturals, for example, 267518 + ... + 271403.

It is an arithmetic number, because the mean of its divisors is an integer number (137425110).

Almost surely, 2^1047123503 is an apocalyptic number.

1047123503 is a deficient number, since it is larger than the sum of its proper divisors (52277377).

1047123503 is an equidigital number, since it uses as much as digits as its factorization.

1047123503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539017.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 1047123503 is about 32359.2877393802. The cubic root of 1047123503 is about 1015.4673615919.

The spelling of 1047123503 in words is "one billion, forty-seven million, one hundred twenty-three thousand, five hundred three".