7101001001 has 4 divisors (see below), whose sum is σ = 7106780100. Its totient is φ = 7095221904.

The previous prime is 7101000989. The next prime is 7101001013. The reversal of 7101001001 is 1001001017.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (7101000989) and next prime (7101001013).

It can be written as a sum of positive squares in 2 ways, for example, as 3410560000 + 3690441001 = 58400^2 + 60749^2 .

It is a cyclic number.

It is not a de Polignac number, because 7101001001 - 2¹⁴ = 7100984617 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7101009001) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2887706 + ... + 2890163.

It is an arithmetic number, because the mean of its divisors is an integer number (1776695025).

Almost surely, 2^7101001001 is an apocalyptic number.

It is an amenable number.

7101001001 is a deficient number, since it is larger than the sum of its proper divisors (5779099).

7101001001 is a wasteful number, since it uses less digits than its factorization.

7101001001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5779098.

The product of its (nonzero) digits is 7, while the sum is 11.

The square root of 7101001001 is about 84267.4373705526. The cubic root of 7101001001 is about 1922.0876634720.

Adding to 7101001001 its reverse (1001001017), we get a palindrome (8102002018).

The spelling of 7101001001 in words is "seven billion, one hundred one million, one thousand, one".