1203126163 has 8 divisors (see below), whose sum is σ = 1229211648. Its totient is φ = 1177061064.

The previous prime is 1203126157. The next prime is 1203126209. The reversal of 1203126163 is 3616213021.

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 1203126163 - 2⁵ = 1203126131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203126143) 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, 218320 + ... + 223762.

It is an arithmetic number, because the mean of its divisors is an integer number (153651456).

Almost surely, 2^1203126163 is an apocalyptic number.

1203126163 is a deficient number, since it is larger than the sum of its proper divisors (26085485).

1203126163 is an equidigital number, since it uses as much as digits as its factorization.

1203126163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10193.

The product of its (nonzero) digits is 1296, while the sum is 25.

The square root of 1203126163 is about 34686.1090784193. The cubic root of 1203126163 is about 1063.5805589817.

Adding to 1203126163 its reverse (3616213021), we get a palindrome (4819339184).

The spelling of 1203126163 in words is "one billion, two hundred three million, one hundred twenty-six thousand, one hundred sixty-three".