311120212 has 36 divisors (see below), whose sum is σ = 620618880. Its totient is φ = 136030752.

The previous prime is 311120203. The next prime is 311120221. The reversal of 311120212 is 212021113.

311120212 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (311120203) and next prime (311120221).

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 311120192 and 311120201.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 733 + ... + 24955.

Almost surely, 2^311120212 is an apocalyptic number.

It is an amenable number.

311120212 is a deficient number, since it is larger than the sum of its proper divisors (309498668).

311120212 is a wasteful number, since it uses less digits than its factorization.

311120212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24272 (or 24257 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 311120212 is about 17638.6000578277. The cubic root of 311120212 is about 677.6041783671.

Adding to 311120212 its reverse (212021113), we get a palindrome (523141325).

Subtracting from 311120212 its reverse (212021113), we obtain a palindrome (99099099).

The spelling of 311120212 in words is "three hundred eleven million, one hundred twenty thousand, two hundred twelve".