311102112 has 48 divisors (see below), whose sum is σ = 842994432. Its totient is φ = 100354560.

The previous prime is 311102107. The next prime is 311102123. The reversal of 311102112 is 211201113.

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 (12).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49293 + ... + 55244.

It is an arithmetic number, because the mean of its divisors is an integer number (17562384).

Almost surely, 2^311102112 is an apocalyptic number.

311102112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

311102112 is an abundant number, since it is smaller than the sum of its proper divisors (531892320).

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

311102112 is a wasteful number, since it uses less digits than its factorization.

311102112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104581 (or 104573 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 311102112 is about 17638.0869710975. The cubic root of 311102112 is about 677.5910378157.

Adding to 311102112 its reverse (211201113), we get a palindrome (522303225).

Subtracting from 311102112 its reverse (211201113), we obtain a palindrome (99900999).

The spelling of 311102112 in words is "three hundred eleven million, one hundred two thousand, one hundred twelve".