1000261323 has 6 divisors (see below), whose sum is σ = 1444821924. Its totient is φ = 666840876.

The previous prime is 1000261321. The next prime is 1000261331. The reversal of 1000261323 is 3231620001.

It is not a de Polignac number, because 1000261323 - 2¹ = 1000261321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1000261296 and 1000261305.

It is not an unprimeable number, because it can be changed into a prime (1000261321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 55570065 + ... + 55570082.

It is an arithmetic number, because the mean of its divisors is an integer number (240803654).

Almost surely, 2^1000261323 is an apocalyptic number.

1000261323 is a deficient number, since it is larger than the sum of its proper divisors (444560601).

1000261323 is a wasteful number, since it uses less digits than its factorization.

1000261323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111140153 (or 111140150 counting only the distinct ones).

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

The square root of 1000261323 is about 31626.9082112052. The cubic root of 1000261323 is about 1000.0871000800.

Adding to 1000261323 its reverse (3231620001), we get a palindrome (4231881324).

The spelling of 1000261323 in words is "one billion, two hundred sixty-one thousand, three hundred twenty-three".