1321031112223 has 8 divisors (see below), whose sum is σ = 1322658974000. Its totient is φ = 1319403437568.

The previous prime is 1321031112209. The next prime is 1321031112283. The reversal of 1321031112223 is 3222111301231.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321031112223 is a prime.

It is a super-2 number, since 2×1321031112223² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1321031112194 and 1321031112203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321031112283) 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, 18610303 + ... + 18681151.

It is an arithmetic number, because the mean of its divisors is an integer number (165332371750).

Almost surely, 2^{1321031112223} is an apocalyptic number.

1321031112223 is a deficient number, since it is larger than the sum of its proper divisors (1627861777).

1321031112223 is an equidigital number, since it uses as much as digits as its factorization.

1321031112223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93561.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1321031112223 its reverse (3222111301231), we get a palindrome (4543142413454).

The spelling of 1321031112223 in words is "one trillion, three hundred twenty-one billion, thirty-one million, one hundred twelve thousand, two hundred twenty-three".