2213240131 has 4 divisors (see below), whose sum is σ = 2216661552. Its totient is φ = 2209818712.

The previous prime is 2213240101. The next prime is 2213240177. The reversal of 2213240131 is 1310423122.

It is a happy number.

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-2213240131 is a prime.

It is a super-2 number, since 2×2213240131² = 9796863754937794322, 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 = 2213240099 and 2213240108.

It is not an unprimeable number, because it can be changed into a prime (2213240101) 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 3 ways as a sum of consecutive naturals, for example, 1709740 + ... + 1711033.

It is an arithmetic number, because the mean of its divisors is an integer number (554165388).

Almost surely, 2^2213240131 is an apocalyptic number.

2213240131 is a deficient number, since it is larger than the sum of its proper divisors (3421421).

2213240131 is an equidigital number, since it uses as much as digits as its factorization.

2213240131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3421420.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2213240131 is about 47045.0861514781. The cubic root of 2213240131 is about 1303.1953213156.

Adding to 2213240131 its reverse (1310423122), we get a palindrome (3523663253).

The spelling of 2213240131 in words is "two billion, two hundred thirteen million, two hundred forty thousand, one hundred thirty-one".