5111220502243 has 4 divisors (see below), whose sum is σ = 5111225255488. Its totient is φ = 5111215749000.

The previous prime is 5111220502229. The next prime is 5111220502247. The reversal of 5111220502243 is 3422050221115.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5111220502243 is a prime.

It is a super-2 number, since 2×5111220502243² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (5111220502247) 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, 88993 + ... + 3198493.

It is an arithmetic number, because the mean of its divisors is an integer number (1277806313872).

Almost surely, 2^{5111220502243} is an apocalyptic number.

5111220502243 is a deficient number, since it is larger than the sum of its proper divisors (4753245).

5111220502243 is a wasteful number, since it uses less digits than its factorization.

5111220502243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4753244.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 5111220502243 its reverse (3422050221115), we get a palindrome (8533270723358).

The spelling of 5111220502243 in words is "five trillion, one hundred eleven billion, two hundred twenty million, five hundred two thousand, two hundred forty-three".