1001011323 has 24 divisors (see below), whose sum is σ = 1526890288. Its totient is φ = 579764736.

The previous prime is 1001011301. The next prime is 1001011331. The reversal of 1001011323 is 3231101001.

It is not a de Polignac number, because 1001011323 - 2²⁸ = 732575867 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001011299 and 1001011308.

It is not an unprimeable number, because it can be changed into a prime (1001012323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33136 + ... + 55677.

Almost surely, 2^1001011323 is an apocalyptic number.

1001011323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1001011323 is a deficient number, since it is larger than the sum of its proper divisors (525878965).

1001011323 is a wasteful number, since it uses less digits than its factorization.

1001011323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88863 (or 88846 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1001011323 is about 31638.7629815074. The cubic root of 1001011323 is about 1000.3369940889.

Adding to 1001011323 its reverse (3231101001), we get a palindrome (4232112324).

The spelling of 1001011323 in words is "one billion, one million, eleven thousand, three hundred twenty-three".