311113250442 has 12 divisors (see below), whose sum is σ = 674078709330. Its totient is φ = 103704416808.

The previous prime is 311113250431. The next prime is 311113250443. The reversal of 311113250442 is 244052311113.

311113250442 is a `hidden beast` number, since 3 + 1 + 1 + 113 + 2 + 504 + 42 = 666.

311113250442 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 310872038481 + 241211961 = 557559^2 + 15531^2 .

It is a super-2 number, since 2×311113250442² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (311113250443) 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, 8642034717 + ... + 8642034752.

Almost surely, 2^311113250442 is an apocalyptic number.

311113250442 is an abundant number, since it is smaller than the sum of its proper divisors (362965458888).

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

311113250442 is a wasteful number, since it uses less digits than its factorization.

311113250442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17284069477 (or 17284069474 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 27.

Adding to 311113250442 its reverse (244052311113), we get a palindrome (555165561555).

The spelling of 311113250442 in words is "three hundred eleven billion, one hundred thirteen million, two hundred fifty thousand, four hundred forty-two".