2311111142 has 8 divisors (see below), whose sum is σ = 3468239856. Its totient is φ = 1155031192.

The previous prime is 2311111141. The next prime is 2311111157. The reversal of 2311111142 is 2411111132.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2311111142.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311111141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 256658 + ... + 265509.

It is an arithmetic number, because the mean of its divisors is an integer number (433529982).

Almost surely, 2^2311111142 is an apocalyptic number.

2311111142 is a deficient number, since it is larger than the sum of its proper divisors (1157128714).

2311111142 is a wasteful number, since it uses less digits than its factorization.

2311111142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 524382.

The product of its digits is 48, while the sum is 17.

The square root of 2311111142 is about 48074.0173274504. The cubic root of 2311111142 is about 1322.1283276774.

Adding to 2311111142 its reverse (2411111132), we get a palindrome (4722222274).

The spelling of 2311111142 in words is "two billion, three hundred eleven million, one hundred eleven thousand, one hundred forty-two".