311120122 has 8 divisors (see below), whose sum is σ = 468172116. Its totient is φ = 155062752.

The previous prime is 311120113. The next prime is 311120129. The reversal of 311120122 is 221021113.

It can be written as a sum of positive squares in 2 ways, for example, as 187443481 + 123676641 = 13691^2 + 11121^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (311120129) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 247873 + ... + 249124.

Almost surely, 2^311120122 is an apocalyptic number.

311120122 is a deficient number, since it is larger than the sum of its proper divisors (157051994).

311120122 is a wasteful number, since it uses less digits than its factorization.

311120122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497312.

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

The square root of 311120122 is about 17638.5975066047. The cubic root of 311120122 is about 677.6041130286.

Adding to 311120122 its reverse (221021113), we get a palindrome (532141235).

Subtracting from 311120122 its reverse (221021113), we obtain a palindrome (90099009).

The spelling of 311120122 in words is "three hundred eleven million, one hundred twenty thousand, one hundred twenty-two".