1312313123223 has 30 divisors (see below), whose sum is σ = 1977872469144. Its totient is φ = 867132471744.

The previous prime is 1312313123221. The next prime is 1312313123239. The reversal of 1312313123223 is 3223213132131.

1312313123223 is a `hidden beast` number, since 1 + 3 + 1 + 2 + 313 + 123 + 223 = 666.

It is not a de Polignac number, because 1312313123223 - 2¹ = 1312313123221 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312313123221) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 399886 + ... + 1668692.

Almost surely, 2^{1312313123223} is an apocalyptic number.

1312313123223 is a deficient number, since it is larger than the sum of its proper divisors (665559345921).

1312313123223 is an equidigital number, since it uses as much as digits as its factorization.

1312313123223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1269045 (or 1268923 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 1312313123223 its reverse (3223213132131), we get a palindrome (4535526255354).

The spelling of 1312313123223 in words is "one trillion, three hundred twelve billion, three hundred thirteen million, one hundred twenty-three thousand, two hundred twenty-three".