5111212430111 has 2 divisors, whose sum is σ = 5111212430112. Its totient is φ = 5111212430110.

The previous prime is 5111212430017. The next prime is 5111212430119. The reversal of 5111212430111 is 1110342121115.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5111212430111 - 2²² = 5111208235807 is a prime.

It is a super-2 number, since 2×5111212430111² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5111212430119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2555606215055 + 2555606215056.

It is an arithmetic number, because the mean of its divisors is an integer number (2555606215056).

Almost surely, 2^{5111212430111} is an apocalyptic number.

5111212430111 is a deficient number, since it is larger than the sum of its proper divisors (1).

5111212430111 is an equidigital number, since it uses as much as digits as its factorization.

5111212430111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 23.

Adding to 5111212430111 its reverse (1110342121115), we get a palindrome (6221554551226).

The spelling of 5111212430111 in words is "five trillion, one hundred eleven billion, two hundred twelve million, four hundred thirty thousand, one hundred eleven".