5001111111 has 8 divisors (see below), whose sum is σ = 6793962480. Its totient is φ = 3271166912.

The previous prime is 5001111109. The next prime is 5001111113. The reversal of 5001111111 is 1111111005.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (5001111109) and next prime (5001111113).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 5001111111 - 2¹ = 5001111109 is a prime.

It is a super-2 number, since 2×5001111111² = 50022224689135308642, which contains 22 as substring.

5001111111 is a modest number, since divided by 111111 gives 5001 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5001111113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15726606 + ... + 15726923.

It is an arithmetic number, because the mean of its divisors is an integer number (849245310).

Almost surely, 2^5001111111 is an apocalyptic number.

5001111111 is a deficient number, since it is larger than the sum of its proper divisors (1792851369).

5001111111 is a wasteful number, since it uses less digits than its factorization.

5001111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31453585.

The product of its (nonzero) digits is 5, while the sum is 12.

The square root of 5001111111 is about 70718.5344234452. The cubic root of 5001111111 is about 1710.1026021675.

Adding to 5001111111 its reverse (1111111005), we get a palindrome (6112222116).

The spelling of 5001111111 in words is "five billion, one million, one hundred eleven thousand, one hundred eleven".