1131312003 has 16 divisors (see below), whose sum is σ = 1588590720. Its totient is φ = 714159936.

The previous prime is 1131312001. The next prime is 1131312023. The reversal of 1131312003 is 3002131311.

It is not a de Polignac number, because 1131312003 - 2¹ = 1131312001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1131312001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159376 + ... + 166322.

It is an arithmetic number, because the mean of its divisors is an integer number (99286920).

Almost surely, 2^1131312003 is an apocalyptic number.

1131312003 is a deficient number, since it is larger than the sum of its proper divisors (457278717).

1131312003 is a wasteful number, since it uses less digits than its factorization.

1131312003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9826.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1131312003 is about 33634.9818343938. The cubic root of 1131312003 is about 1041.9833954518.

Adding to 1131312003 its reverse (3002131311), we get a palindrome (4133443314).

The spelling of 1131312003 in words is "one billion, one hundred thirty-one million, three hundred twelve thousand, three".