1000361231 has 4 divisors (see below), whose sum is σ = 1000465200. Its totient is φ = 1000257264.

The previous prime is 1000361221. The next prime is 1000361269. The reversal of 1000361231 is 1321630001.

1000361231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1000361231 is a prime.

It is a super-2 number, since 2×1000361231² = 2001445184975670722, 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 (1000361221) 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, 35891 + ... + 57348.

It is an arithmetic number, because the mean of its divisors is an integer number (250116300).

Almost surely, 2^1000361231 is an apocalyptic number.

1000361231 is a deficient number, since it is larger than the sum of its proper divisors (103969).

1000361231 is an equidigital number, since it uses as much as digits as its factorization.

1000361231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103968.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1000361231 is about 31628.4876495858. The cubic root of 1000361231 is about 1000.1203958376.

Adding to 1000361231 its reverse (1321630001), we get a palindrome (2321991232).

The spelling of 1000361231 in words is "one billion, three hundred sixty-one thousand, two hundred thirty-one".