2311011090 has 24 divisors (see below), whose sum is σ = 6008629068. Its totient is φ = 616269600.

The previous prime is 2311011037. The next prime is 2311011091. The reversal of 2311011090 is 901101132.

It can be written as a sum of positive squares in 2 ways, for example, as 2252166849 + 58844241 = 47457^2 + 7671^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (2311011091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12838861 + ... + 12839040.

Almost surely, 2^2311011090 is an apocalyptic number.

2311011090 is an abundant number, since it is smaller than the sum of its proper divisors (3697617978).

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

2311011090 is a wasteful number, since it uses less digits than its factorization.

2311011090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25677914 (or 25677911 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 2311011090 is about 48072.9767124941. The cubic root of 2311011090 is about 1322.1092483278.

The spelling of 2311011090 in words is "two billion, three hundred eleven million, eleven thousand, ninety".