2131113226 has 48 divisors (see below), whose sum is σ = 3714530400. Its totient is φ = 913762080.

The previous prime is 2131113221. The next prime is 2131113253. The reversal of 2131113226 is 6223111312.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 2131113197 and 2131113206.

It is not an unprimeable number, because it can be changed into a prime (2131113221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1236001 + ... + 1237723.

It is an arithmetic number, because the mean of its divisors is an integer number (77386050).

Almost surely, 2^2131113226 is an apocalyptic number.

2131113226 is a deficient number, since it is larger than the sum of its proper divisors (1583417174).

2131113226 is a wasteful number, since it uses less digits than its factorization.

2131113226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2035 (or 2024 counting only the distinct ones).

The product of its digits is 432, while the sum is 22.

The square root of 2131113226 is about 46163.9819123091. The cubic root of 2131113226 is about 1286.8724640466.

Adding to 2131113226 its reverse (6223111312), we get a palindrome (8354224538).

The spelling of 2131113226 in words is "two billion, one hundred thirty-one million, one hundred thirteen thousand, two hundred twenty-six".