313223131220012 has 48 divisors (see below), whose sum is σ = 621376737256800. Its totient is φ = 136955220733440.

The previous prime is 313223131219939. The next prime is 313223131220117. The reversal of 313223131220012 is 210022131322313.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 254278712 + ... + 255507552.

It is an arithmetic number, because the mean of its divisors is an integer number (12945348692850).

Almost surely, 2^{313223131220012} is an apocalyptic number.

It is an amenable number.

313223131220012 is a deficient number, since it is larger than the sum of its proper divisors (308153606036788).

313223131220012 is a wasteful number, since it uses less digits than its factorization.

313223131220012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1486866 (or 1486864 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 313223131220012 its reverse (210022131322313), we get a palindrome (523245262542325).

The spelling of 313223131220012 in words is "three hundred thirteen trillion, two hundred twenty-three billion, one hundred thirty-one million, two hundred twenty thousand, twelve".