5120111311 has 32 divisors (see below), whose sum is σ = 6159097856. Its totient is φ = 4164048000.

The previous prime is 5120111291. The next prime is 5120111383. The reversal of 5120111311 is 1131110215.

It is a happy number.

It is not a de Polignac number, because 5120111311 - 2¹¹ = 5120109263 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5120111411) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8113966 + ... + 8114596.

It is an arithmetic number, because the mean of its divisors is an integer number (192471808).

Almost surely, 2^5120111311 is an apocalyptic number.

5120111311 is a deficient number, since it is larger than the sum of its proper divisors (1038986545).

5120111311 is a wasteful number, since it uses less digits than its factorization.

5120111311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1343.

The product of its (nonzero) digits is 30, while the sum is 16.

The square root of 5120111311 is about 71554.9530850241. The cubic root of 5120111311 is about 1723.5602421579.

Adding to 5120111311 its reverse (1131110215), we get a palindrome (6251221526).

The spelling of 5120111311 in words is "five billion, one hundred twenty million, one hundred eleven thousand, three hundred eleven".