1331223123313 has 32 divisors (see below), whose sum is σ = 1436460044544. Its totient is φ = 1230736945152.

The previous prime is 1331223123277. The next prime is 1331223123317. The reversal of 1331223123313 is 3133213221331.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1331223123313 - 2¹⁷ = 1331222992241 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331223123317) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35696845 + ... + 35734117.

It is an arithmetic number, because the mean of its divisors is an integer number (44889376392).

Almost surely, 2^{1331223123313} is an apocalyptic number.

It is an amenable number.

1331223123313 is a deficient number, since it is larger than the sum of its proper divisors (105236921231).

1331223123313 is a wasteful number, since it uses less digits than its factorization.

1331223123313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37785.

The product of its digits is 5832, while the sum is 28.

Adding to 1331223123313 its reverse (3133213221331), we get a palindrome (4464436344644).

The spelling of 1331223123313 in words is "one trillion, three hundred thirty-one billion, two hundred twenty-three million, one hundred twenty-three thousand, three hundred thirteen".