311031313132112 has 30 divisors (see below), whose sum is σ = 622689705555354. Its totient is φ = 150499022475840.

The previous prime is 311031313132073. The next prime is 311031313132117. The reversal of 311031313132112 is 211231313130113.

It can be written as a sum of positive squares in only one way, i.e., 232449541719616 + 78581771412496 = 15246296^2 + 8864636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311031313132117) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 10114166243 + ... + 10114196994.

Almost surely, 2^{311031313132112} is an apocalyptic number.

It is an amenable number.

311031313132112 is an abundant number, since it is smaller than the sum of its proper divisors (311658392423242).

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

311031313132112 is a wasteful number, since it uses less digits than its factorization.

311031313132112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20228363307 (or 20228363270 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 26.

Adding to 311031313132112 its reverse (211231313130113), we get a palindrome (522262626262225).

The spelling of 311031313132112 in words is "three hundred eleven trillion, thirty-one billion, three hundred thirteen million, one hundred thirty-two thousand, one hundred twelve".