5000120001 has 6 divisors (see below), whose sum is σ = 7222395570. Its totient is φ = 3333413328.

The previous prime is 5000119997. The next prime is 5000120003. The reversal of 5000120001 is 1000210005.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 3569465025 + 1430654976 = 59745^2 + 37824^2 .

It is not a de Polignac number, because 5000120001 - 2² = 5000119997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 555568889 = 5000120001 / (5 + 0 + 0 + 0 + 1 + 2 + 0 + 0 + 0 + 1).

It is not an unprimeable number, because it can be changed into a prime (5000120003) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 277784436 + ... + 277784453.

It is an arithmetic number, because the mean of its divisors is an integer number (1203732595).

Almost surely, 2^5000120001 is an apocalyptic number.

It is an amenable number.

5000120001 is a deficient number, since it is larger than the sum of its proper divisors (2222275569).

5000120001 is a wasteful number, since it uses less digits than its factorization.

5000120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 555568895 (or 555568892 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 5000120001 is about 70711.5266487721. The cubic root of 5000120001 is about 1709.9896264888.

Adding to 5000120001 its reverse (1000210005), we get a palindrome (6000330006).

The spelling of 5000120001 in words is "five billion, one hundred twenty thousand, one".