1013043013 has 4 divisors (see below), whose sum is σ = 1013280300. Its totient is φ = 1012805728.

The previous prime is 1013043011. The next prime is 1013043023. The reversal of 1013043013 is 3103403101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3103403101 = 7691 ⋅403511.

It can be written as a sum of positive squares in 2 ways, for example, as 118853604 + 894189409 = 10902^2 + 29903^2 .

It is a cyclic number.

It is not a de Polignac number, because 1013043013 - 2¹ = 1013043011 is a prime.

It is a super-2 number, since 2×1013043013² = 2052512292376236338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013043011) 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, 112120 + ... + 120817.

It is an arithmetic number, because the mean of its divisors is an integer number (253320075).

Almost surely, 2^1013043013 is an apocalyptic number.

It is an amenable number.

1013043013 is a deficient number, since it is larger than the sum of its proper divisors (237287).

1013043013 is an equidigital number, since it uses as much as digits as its factorization.

1013043013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 237286.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 1013043013 is about 31828.3366357716. The cubic root of 1013043013 is about 1004.3289045451.

Adding to 1013043013 its reverse (3103403101), we get a palindrome (4116446114).

The spelling of 1013043013 in words is "one billion, thirteen million, forty-three thousand, thirteen".