1173231503 has 2 divisors, whose sum is σ = 1173231504. Its totient is φ = 1173231502.

The previous prime is 1173231497. The next prime is 1173231571. The reversal of 1173231503 is 3051323711.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1173231503 - 2¹⁶ = 1173165967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1173231203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 586615751 + 586615752.

It is an arithmetic number, because the mean of its divisors is an integer number (586615752).

Almost surely, 2^1173231503 is an apocalyptic number.

1173231503 is a deficient number, since it is larger than the sum of its proper divisors (1).

1173231503 is an equidigital number, since it uses as much as digits as its factorization.

1173231503 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 26.

The square root of 1173231503 is about 34252.4671082245. The cubic root of 1173231503 is about 1054.6974726108.

The spelling of 1173231503 in words is "one billion, one hundred seventy-three million, two hundred thirty-one thousand, five hundred three".