311303123312 has 10 divisors (see below), whose sum is σ = 603149801448. Its totient is φ = 155651561648.

The previous prime is 311303123281. The next prime is 311303123357. The reversal of 311303123312 is 213321303113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9728222588 + ... + 9728222619.

Almost surely, 2^311303123312 is an apocalyptic number.

It is an amenable number.

311303123312 is a deficient number, since it is larger than the sum of its proper divisors (291846678136).

311303123312 is a wasteful number, since it uses less digits than its factorization.

311303123312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19456445215 (or 19456445209 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 311303123312 its reverse (213321303113), we get a palindrome (524624426425).

The spelling of 311303123312 in words is "three hundred eleven billion, three hundred three million, one hundred twenty-three thousand, three hundred twelve".