1013112403 has 2 divisors, whose sum is σ = 1013112404. Its totient is φ = 1013112402.

The previous prime is 1013112389. The next prime is 1013112413. The reversal of 1013112403 is 3042113101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1013112403 is a prime.

It is a super-2 number, since 2×1013112403² = 2052793482224868818, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1013112413) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 506556201 + 506556202.

It is an arithmetic number, because the mean of its divisors is an integer number (506556202).

Almost surely, 2^1013112403 is an apocalyptic number.

1013112403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1013112403 is an equidigital number, since it uses as much as digits as its factorization.

1013112403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1013112403 is about 31829.4266834953. The cubic root of 1013112403 is about 1004.3518350593.

Adding to 1013112403 its reverse (3042113101), we get a palindrome (4055225504).

The spelling of 1013112403 in words is "one billion, thirteen million, one hundred twelve thousand, four hundred three".