5187112031 has 4 divisors (see below), whose sum is σ = 5187759192. Its totient is φ = 5186464872.

The previous prime is 5187112009. The next prime is 5187112037. The reversal of 5187112031 is 1302117815.

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 5187112031 - 2²⁶ = 5120003167 is a prime.

It is a super-2 number, since 2×5187112031² = 53812262444289889922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 5187111985 and 5187112003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5187112037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311405 + ... + 327638.

It is an arithmetic number, because the mean of its divisors is an integer number (1296939798).

Almost surely, 2^5187112031 is an apocalyptic number.

5187112031 is a deficient number, since it is larger than the sum of its proper divisors (647161).

5187112031 is an equidigital number, since it uses as much as digits as its factorization.

5187112031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647160.

The product of its (nonzero) digits is 1680, while the sum is 29.

The square root of 5187112031 is about 72021.6080839632. The cubic root of 5187112031 is about 1731.0457364936.

Adding to 5187112031 its reverse (1302117815), we get a palindrome (6489229846).

The spelling of 5187112031 in words is "five billion, one hundred eighty-seven million, one hundred twelve thousand, thirty-one".