311303023112 has 32 divisors (see below), whose sum is σ = 618700809600. Its totient is φ = 146336073984.

The previous prime is 311303023111. The next prime is 311303023133. The reversal of 311303023112 is 211320303113.

It is not an unprimeable number, because it can be changed into a prime (311303023111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1120388 + ... + 1370355.

It is an arithmetic number, because the mean of its divisors is an integer number (19334400300).

Almost surely, 2^311303023112 is an apocalyptic number.

It is an amenable number.

311303023112 is a deficient number, since it is larger than the sum of its proper divisors (307397786488).

311303023112 is a wasteful number, since it uses less digits than its factorization.

311303023112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2491685 (or 2491681 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 311303023112 its reverse (211320303113), we get a palindrome (522623326225).

The spelling of 311303023112 in words is "three hundred eleven billion, three hundred three million, twenty-three thousand, one hundred twelve".