311230327512 has 64 divisors (see below), whose sum is σ = 849406330080. Its totient is φ = 94451346432.

The previous prime is 311230327489. The next prime is 311230327519. The reversal of 311230327512 is 215723032113.

It is a super-2 number, since 2×311230327512² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 311230327512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311230327519) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6809643 + ... + 6855194.

Almost surely, 2^311230327512 is an apocalyptic number.

It is an amenable number.

311230327512 is an abundant number, since it is smaller than the sum of its proper divisors (538176002568).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

311230327512 is a wasteful number, since it uses less digits than its factorization.

311230327512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13664932 (or 13664928 counting only the distinct ones).

The product of its (nonzero) digits is 7560, while the sum is 30.

Adding to 311230327512 its reverse (215723032113), we get a palindrome (526953359625).

The spelling of 311230327512 in words is "three hundred eleven billion, two hundred thirty million, three hundred twenty-seven thousand, five hundred twelve".