2311131122 has 4 divisors (see below), whose sum is σ = 3466696686. Its totient is φ = 1155565560.

The previous prime is 2311131077. The next prime is 2311131143. The reversal of 2311131122 is 2211311132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 2176315801 + 134815321 = 46651^2 + 11611^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 2311131122.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 577782779 + ... + 577782782.

Almost surely, 2^2311131122 is an apocalyptic number.

2311131122 is a deficient number, since it is larger than the sum of its proper divisors (1155565564).

2311131122 is a wasteful number, since it uses less digits than its factorization.

2311131122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1155565563.

The product of its digits is 72, while the sum is 17.

The square root of 2311131122 is about 48074.2251315609. The cubic root of 2311131122 is about 1322.1321376843.

Adding to 2311131122 its reverse (2211311132), we get a palindrome (4522442254).

The spelling of 2311131122 in words is "two billion, three hundred eleven million, one hundred thirty-one thousand, one hundred twenty-two".