1003013131 has 4 divisors (see below), whose sum is σ = 1030121632. Its totient is φ = 975904632.

The previous prime is 1003013119. The next prime is 1003013177. The reversal of 1003013131 is 1313103001.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1003013131 - 2¹⁹ = 1002488843 is a prime.

It is a super-2 number, since 2×1003013131² = 2012070681916846322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1003013101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13554195 + ... + 13554268.

It is an arithmetic number, because the mean of its divisors is an integer number (257530408).

Almost surely, 2^1003013131 is an apocalyptic number.

1003013131 is a deficient number, since it is larger than the sum of its proper divisors (27108501).

1003013131 is an equidigital number, since it uses as much as digits as its factorization.

1003013131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27108500.

The product of its (nonzero) digits is 27, while the sum is 13.

The square root of 1003013131 is about 31670.3825521575. The cubic root of 1003013131 is about 1001.0033699121.

Adding to 1003013131 its reverse (1313103001), we get a palindrome (2316116132).

The spelling of 1003013131 in words is "one billion, three million, thirteen thousand, one hundred thirty-one".