20130224311 has 4 divisors (see below), whose sum is σ = 20131136824. Its totient is φ = 20129311800.

The previous prime is 20130224287. The next prime is 20130224363. The reversal of 20130224311 is 11342203102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20130224311 - 2¹¹ = 20130222263 is a prime.

It is a super-2 number, since 2×20130224311² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20130224371) 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, 422325 + ... + 467566.

It is an arithmetic number, because the mean of its divisors is an integer number (5032784206).

Almost surely, 2^20130224311 is an apocalyptic number.

20130224311 is a deficient number, since it is larger than the sum of its proper divisors (912513).

20130224311 is an equidigital number, since it uses as much as digits as its factorization.

20130224311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912512.

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

Adding to 20130224311 its reverse (11342203102), we get a palindrome (31472427413).

The spelling of 20130224311 in words is "twenty billion, one hundred thirty million, two hundred twenty-four thousand, three hundred eleven".