2311011213 has 16 divisors (see below), whose sum is σ = 3523153920. Its totient is φ = 1319972976.

The previous prime is 2311011203. The next prime is 2311011223. The reversal of 2311011213 is 3121101132.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2311011203) and next prime (2311011223).

It is not a de Polignac number, because 2311011213 - 2⁶ = 2311011149 is a prime.

It is a super-2 number, since 2×2311011213² = 10681545653223462738, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2311011192 and 2311011201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2311011203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23968 + ... + 72086.

It is an arithmetic number, because the mean of its divisors is an integer number (220197120).

Almost surely, 2^2311011213 is an apocalyptic number.

It is an amenable number.

2311011213 is a deficient number, since it is larger than the sum of its proper divisors (1212142707).

2311011213 is a wasteful number, since it uses less digits than its factorization.

2311011213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50416.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 2311011213 is about 48072.9779917991. The cubic root of 2311011213 is about 1322.1092717836.

Adding to 2311011213 its reverse (3121101132), we get a palindrome (5432112345).

The spelling of 2311011213 in words is "two billion, three hundred eleven million, eleven thousand, two hundred thirteen".