2311109477 has 4 divisors (see below), whose sum is σ = 2312018700. Its totient is φ = 2310200256.

The previous prime is 2311109459. The next prime is 2311109491. The reversal of 2311109477 is 7749011132.

It is a Cunningham number, because it is equal to 48074²+1.

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 2136843076 + 174266401 = 46226^2 + 13201^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311109477 - 2²⁰ = 2310060901 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 (2311109407) 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, 450788 + ... + 455885.

It is an arithmetic number, because the mean of its divisors is an integer number (578004675).

Almost surely, 2^2311109477 is an apocalyptic number.

It is an amenable number.

2311109477 is a deficient number, since it is larger than the sum of its proper divisors (909223).

2311109477 is an equidigital number, since it uses as much as digits as its factorization.

2311109477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909222.

The product of its (nonzero) digits is 10584, while the sum is 35.

The square root of 2311109477 is about 48074.0000104006. Note that the first 4 decimals coincide. The cubic root of 2311109477 is about 1322.1280101759.

The spelling of 2311109477 in words is "two billion, three hundred eleven million, one hundred nine thousand, four hundred seventy-seven".