311311101312 has 48 divisors (see below), whose sum is σ = 895830125580. Its totient is φ = 103770366720.

The previous prime is 311311101271. The next prime is 311311101341. The reversal of 311311101312 is 213101113113.

311311101312 is a `hidden beast` number, since 31 + 1 + 311 + 10 + 1 + 312 = 666.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 135116514 + ... + 135118817.

Almost surely, 2^311311101312 is an apocalyptic number.

311311101312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

311311101312 is an abundant number, since it is smaller than the sum of its proper divisors (584519024268).

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

311311101312 is a wasteful number, since it uses less digits than its factorization.

311311101312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 270235351 (or 270235336 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 311311101312 its reverse (213101113113), we get a palindrome (524412214425).

The spelling of 311311101312 in words is "three hundred eleven billion, three hundred eleven million, one hundred one thousand, three hundred twelve".