1001131003 has 8 divisors (see below), whose sum is σ = 1060931088. Its totient is φ = 941432064.

The previous prime is 1001130997. The next prime is 1001131013. The reversal of 1001131003 is 3001311001.

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 1001131003 - 2⁵ = 1001130971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1001131013) 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, 4401 + ... + 44962.

It is an arithmetic number, because the mean of its divisors is an integer number (132616386).

Almost surely, 2^1001131003 is an apocalyptic number.

1001131003 is a deficient number, since it is larger than the sum of its proper divisors (59800085).

1001131003 is a wasteful number, since it uses less digits than its factorization.

1001131003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50573.

The product of its (nonzero) digits is 9, while the sum is 10.

The square root of 1001131003 is about 31640.6542757889. The cubic root of 1001131003 is about 1000.3768589595.

Adding to 1001131003 its reverse (3001311001), we get a palindrome (4002442004).

It can be divided in two parts, 10011 and 31003, that added together give a palindrome (41014).

The spelling of 1001131003 in words is "one billion, one million, one hundred thirty-one thousand, three".