1223331031313 has 4 divisors (see below), whose sum is σ = 1223338895088. Its totient is φ = 1223323167540.

The previous prime is 1223331031301. The next prime is 1223331031361. The reversal of 1223331031313 is 3131301333221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1223331031313 - 2⁴ = 1223331031297 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1223331031393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3693731 + ... + 4011272.

It is an arithmetic number, because the mean of its divisors is an integer number (305834723772).

Almost surely, 2^{1223331031313} is an apocalyptic number.

It is an amenable number.

1223331031313 is a deficient number, since it is larger than the sum of its proper divisors (7863775).

1223331031313 is an equidigital number, since it uses as much as digits as its factorization.

1223331031313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7863774.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 1223331031313 its reverse (3131301333221), we get a palindrome (4354632364534).

The spelling of 1223331031313 in words is "one trillion, two hundred twenty-three billion, three hundred thirty-one million, thirty-one thousand, three hundred thirteen".