1002604123 has 2 divisors, whose sum is σ = 1002604124. Its totient is φ = 1002604122.

The previous prime is 1002604111. The next prime is 1002604171. The reversal of 1002604123 is 3214062001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002604123 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1002604123.

It is not a weakly prime, because it can be changed into another prime (1002601123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 501302061 + 501302062.

It is an arithmetic number, because the mean of its divisors is an integer number (501302062).

Almost surely, 2^1002604123 is an apocalyptic number.

1002604123 is a deficient number, since it is larger than the sum of its proper divisors (1).

1002604123 is an equidigital number, since it uses as much as digits as its factorization.

1002604123 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1002604123 is about 31663.9246304055. The cubic root of 1002604123 is about 1000.8672885930.

Adding to 1002604123 its reverse (3214062001), we get a palindrome (4216666124).

The spelling of 1002604123 in words is "one billion, two million, six hundred four thousand, one hundred twenty-three".