2211340031 has 4 divisors (see below), whose sum is σ = 2219748432. Its totient is φ = 2202931632.

The previous prime is 2211339971. The next prime is 2211340051. The reversal of 2211340031 is 1300431122.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2211340031 is a prime.

It is a super-2 number, since 2×2211340031² = 9780049465406161922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2211339991 and 2211340009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2211340051) 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, 4203806 + ... + 4204331.

It is an arithmetic number, because the mean of its divisors is an integer number (554937108).

Almost surely, 2^2211340031 is an apocalyptic number.

2211340031 is a deficient number, since it is larger than the sum of its proper divisors (8408401).

2211340031 is an equidigital number, since it uses as much as digits as its factorization.

2211340031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8408400.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 2211340031 is about 47024.8873576535. The cubic root of 2211340031 is about 1302.8222769342.

Adding to 2211340031 its reverse (1300431122), we get a palindrome (3511771153).

The spelling of 2211340031 in words is "two billion, two hundred eleven million, three hundred forty thousand, thirty-one".