1123729403 has 2 divisors, whose sum is σ = 1123729404. Its totient is φ = 1123729402.

The previous prime is 1123729379. The next prime is 1123729433. The reversal of 1123729403 is 3049273211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1123729403 - 2¹⁸ = 1123467259 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1123729403.

It is not a weakly prime, because it can be changed into another prime (1123729433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561864701 + 561864702.

It is an arithmetic number, because the mean of its divisors is an integer number (561864702).

Almost surely, 2^1123729403 is an apocalyptic number.

1123729403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123729403 is an equidigital number, since it uses as much as digits as its factorization.

1123729403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9072, while the sum is 32.

The square root of 1123729403 is about 33522.0733696471. The cubic root of 1123729403 is about 1039.6502161350.

The spelling of 1123729403 in words is "one billion, one hundred twenty-three million, seven hundred twenty-nine thousand, four hundred three".