1031243013 has 12 divisors (see below), whose sum is σ = 1490113248. Its totient is φ = 687246120.

The previous prime is 1031243009. The next prime is 1031243033. The reversal of 1031243013 is 3103421301.

It is not a de Polignac number, because 1031243013 - 2² = 1031243009 is a prime.

It is a super-2 number, since 2×1031243013² = 2126924303722636338, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031243033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7456 + ... + 46022.

It is an arithmetic number, because the mean of its divisors is an integer number (124176104).

Almost surely, 2^1031243013 is an apocalyptic number.

It is an amenable number.

1031243013 is a deficient number, since it is larger than the sum of its proper divisors (458870235).

1031243013 is a wasteful number, since it uses less digits than its factorization.

1031243013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41544 (or 41541 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1031243013 is about 32112.9726590361. The cubic root of 1031243013 is about 1010.3077234418.

Adding to 1031243013 its reverse (3103421301), we get a palindrome (4134664314).

The spelling of 1031243013 in words is "one billion, thirty-one million, two hundred forty-three thousand, thirteen".