5111000000111 has 4 divisors (see below), whose sum is σ = 5111269600800. Its totient is φ = 5110730399424.

The previous prime is 5111000000083. The next prime is 5111000000123. The reversal of 5111000000111 is 1110000001115.

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 5111000000111 - 2²⁶ = 5110932891247 is a prime.

It is a super-2 number, since 2×5111000000111² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5111000000092 and 5111000000101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5111000000011) 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, 134771906 + ... + 134809823.

It is an arithmetic number, because the mean of its divisors is an integer number (1277817400200).

Almost surely, 2^{5111000000111} is an apocalyptic number.

5111000000111 is a deficient number, since it is larger than the sum of its proper divisors (269600689).

5111000000111 is a wasteful number, since it uses less digits than its factorization.

5111000000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 269600688.

The product of its (nonzero) digits is 5, while the sum is 11.

Adding to 5111000000111 its reverse (1110000001115), we get a palindrome (6221000001226).

It can be divided in two parts, 5 and 111000000111, that multiplied together give a palindrome (555000000555).

The spelling of 5111000000111 in words is "five trillion, one hundred eleven billion, one hundred eleven", and thus it is an aban number.