313121041011223 has 4 divisors (see below), whose sum is σ = 314008069456368. Its totient is φ = 312234012566080.

The previous prime is 313121041011169. The next prime is 313121041011257. The reversal of 313121041011223 is 322110140121313.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 313121041011223 - 2¹³ = 313121041003031 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 (313121041011923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 443514222043 + ... + 443514222748.

It is an arithmetic number, because the mean of its divisors is an integer number (78502017364092).

Almost surely, 2^{313121041011223} is an apocalyptic number.

313121041011223 is a deficient number, since it is larger than the sum of its proper divisors (887028445145).

313121041011223 is an equidigital number, since it uses as much as digits as its factorization.

313121041011223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 887028445144.

The product of its (nonzero) digits is 864, while the sum is 25.

Adding to 313121041011223 its reverse (322110140121313), we get a palindrome (635231181132536).

The spelling of 313121041011223 in words is "three hundred thirteen trillion, one hundred twenty-one billion, forty-one million, eleven thousand, two hundred twenty-three".