1312312212223 has 8 divisors (see below), whose sum is σ = 1313881037280. Its totient is φ = 1310743568640.

The previous prime is 1312312212179. The next prime is 1312312212241. The reversal of 1312312212223 is 3222122132131.

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

It is a cyclic number.

It is not a de Polignac number, because 1312312212223 - 2¹³ = 1312312204031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312312212283) 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, 19285486 + ... + 19353412.

It is an arithmetic number, because the mean of its divisors is an integer number (164235129660).

Almost surely, 2^{1312312212223} is an apocalyptic number.

1312312212223 is a deficient number, since it is larger than the sum of its proper divisors (1568825057).

1312312212223 is an equidigital number, since it uses as much as digits as its factorization.

1312312212223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90737.

The product of its digits is 1728, while the sum is 25.

Adding to 1312312212223 its reverse (3222122132131), we get a palindrome (4534434344354).

The spelling of 1312312212223 in words is "one trillion, three hundred twelve billion, three hundred twelve million, two hundred twelve thousand, two hundred twenty-three".