1001311223 has 8 divisors (see below), whose sum is σ = 1094000016. Its totient is φ = 908899200.

The previous prime is 1001311211. The next prime is 1001311247. The reversal of 1001311223 is 3221131001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1001311223 - 2²⁴ = 984534007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1001311198 and 1001311207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001311123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61586 + ... + 76127.

It is an arithmetic number, because the mean of its divisors is an integer number (136750002).

Almost surely, 2^1001311223 is an apocalyptic number.

1001311223 is a deficient number, since it is larger than the sum of its proper divisors (92688793).

1001311223 is a wasteful number, since it uses less digits than its factorization.

1001311223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138385.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1001311223 is about 31643.5020659850. The cubic root of 1001311223 is about 1000.4368834384.

Adding to 1001311223 its reverse (3221131001), we get a palindrome (4222442224).

The spelling of 1001311223 in words is "one billion, one million, three hundred eleven thousand, two hundred twenty-three".