1000231013 has 4 divisors (see below), whose sum is σ = 1004416320. Its totient is φ = 996045708.

The previous prime is 1000230943. The next prime is 1000231033. The reversal of 1000231013 is 3101320001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1000231013 - 2¹² = 1000226917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000230985 and 1000231003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000231033) 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, 2092295 + ... + 2092772.

It is an arithmetic number, because the mean of its divisors is an integer number (251104080).

Almost surely, 2^1000231013 is an apocalyptic number.

It is an amenable number.

1000231013 is a deficient number, since it is larger than the sum of its proper divisors (4185307).

1000231013 is an equidigital number, since it uses as much as digits as its factorization.

1000231013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4185306.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1000231013 is about 31626.4290270021. The cubic root of 1000231013 is about 1000.0769984044.

Adding to 1000231013 its reverse (3101320001), we get a palindrome (4101551014).

The spelling of 1000231013 in words is "one billion, two hundred thirty-one thousand, thirteen".