5111252211543 has 16 divisors (see below), whose sum is σ = 6980902279296. Its totient is φ = 3324720238560.

The previous prime is 5111252211497. The next prime is 5111252211671. The reversal of 5111252211543 is 3451122521115.

It is not a de Polignac number, because 5111252211543 - 2¹⁸ = 5111251949399 is a prime.

It is a super-2 number, since 2×5111252211543² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111252215543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20931805 + ... + 21174582.

It is an arithmetic number, because the mean of its divisors is an integer number (436306392456).

Almost surely, 2^{5111252211543} is an apocalyptic number.

5111252211543 is a deficient number, since it is larger than the sum of its proper divisors (1869650067753).

5111252211543 is a wasteful number, since it uses less digits than its factorization.

5111252211543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42107374.

The product of its digits is 12000, while the sum is 33.

Adding to 5111252211543 its reverse (3451122521115), we get a palindrome (8562374732658).

The spelling of 5111252211543 in words is "five trillion, one hundred eleven billion, two hundred fifty-two million, two hundred eleven thousand, five hundred forty-three".