7123126601 has 4 divisors (see below), whose sum is σ = 7288780752. Its totient is φ = 6957472452.

The previous prime is 7123126589. The next prime is 7123126613. The reversal of 7123126601 is 1066213217.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (7123126589) and next prime (7123126613).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7123126601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7123126301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 82827011 + ... + 82827096.

It is an arithmetic number, because the mean of its divisors is an integer number (1822195188).

Almost surely, 2^7123126601 is an apocalyptic number.

It is an amenable number.

7123126601 is a deficient number, since it is larger than the sum of its proper divisors (165654151).

7123126601 is a wasteful number, since it uses less digits than its factorization.

7123126601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165654150.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 7123126601 is about 84398.6172931761. The cubic root of 7123126601 is about 1924.0819010733.

Adding to 7123126601 its reverse (1066213217), we get a palindrome (8189339818).

The spelling of 7123126601 in words is "seven billion, one hundred twenty-three million, one hundred twenty-six thousand, six hundred one".