1131402003 has 16 divisors (see below), whose sum is σ = 1598610816. Its totient is φ = 709304960.

The previous prime is 1131401989. The next prime is 1131402007. The reversal of 1131402003 is 3002041311.

It is a cyclic number.

It is not a de Polignac number, because 1131402003 - 2¹⁶ = 1131336467 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131402007) 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 in 15 ways as a sum of consecutive naturals, for example, 56788 + ... + 74078.

It is an arithmetic number, because the mean of its divisors is an integer number (99913176).

Almost surely, 2^1131402003 is an apocalyptic number.

1131402003 is a deficient number, since it is larger than the sum of its proper divisors (467208813).

1131402003 is a wasteful number, since it uses less digits than its factorization.

1131402003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18594.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1131402003 is about 33636.3197005856. The cubic root of 1131402003 is about 1042.0110259135.

Adding to 1131402003 its reverse (3002041311), we get a palindrome (4133443314).

The spelling of 1131402003 in words is "one billion, one hundred thirty-one million, four hundred two thousand, three".