2311122101 has 4 divisors (see below), whose sum is σ = 2320115052. Its totient is φ = 2302129152.

The previous prime is 2311122091. The next prime is 2311122127. The reversal of 2311122101 is 1012211132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2183319076 + 127803025 = 46726^2 + 11305^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311122101 - 2¹⁰ = 2311121077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311122181) 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, 4496090 + ... + 4496603.

It is an arithmetic number, because the mean of its divisors is an integer number (580028763).

Almost surely, 2^2311122101 is an apocalyptic number.

It is an amenable number.

2311122101 is a deficient number, since it is larger than the sum of its proper divisors (8992951).

2311122101 is an equidigital number, since it uses as much as digits as its factorization.

2311122101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8992950.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2311122101 is about 48074.1313078042. The cubic root of 2311122101 is about 1322.1304174632.

Adding to 2311122101 its reverse (1012211132), we get a palindrome (3323333233).

The spelling of 2311122101 in words is "two billion, three hundred eleven million, one hundred twenty-two thousand, one hundred one".