1321011023223 has 8 divisors (see below), whose sum is σ = 1762134707200. Its totient is φ = 880280677368.

The previous prime is 1321011023219. The next prime is 1321011023239. The reversal of 1321011023223 is 3223201101231.

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

It is not a de Polignac number, because 1321011023223 - 2² = 1321011023219 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321011023223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321011093223) 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, 98326693 + ... + 98340126.

It is an arithmetic number, because the mean of its divisors is an integer number (220266838400).

Almost surely, 2^{1321011023223} is an apocalyptic number.

1321011023223 is a deficient number, since it is larger than the sum of its proper divisors (441123683977).

1321011023223 is a wasteful number, since it uses less digits than its factorization.

1321011023223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196669061.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1321011023223 its reverse (3223201101231), we get a palindrome (4544212124454).

The spelling of 1321011023223 in words is "one trillion, three hundred twenty-one billion, eleven million, twenty-three thousand, two hundred twenty-three".