7321311011 has 4 divisors (see below), whose sum is σ = 8367212592. Its totient is φ = 6275409432.

The previous prime is 7321310989. The next prime is 7321311077. The reversal of 7321311011 is 1101131237.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7321311011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7321310011) 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, 522950780 + ... + 522950793.

It is an arithmetic number, because the mean of its divisors is an integer number (2091803148).

Almost surely, 2^7321311011 is an apocalyptic number.

7321311011 is a deficient number, since it is larger than the sum of its proper divisors (1045901581).

7321311011 is a wasteful number, since it uses less digits than its factorization.

7321311011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045901580.

The product of its (nonzero) digits is 126, while the sum is 20.

The square root of 7321311011 is about 85564.6598251872. The cubic root of 7321311011 is about 1941.7632860474.

Adding to 7321311011 its reverse (1101131237), we get a palindrome (8422442248).

The spelling of 7321311011 in words is "seven billion, three hundred twenty-one million, three hundred eleven thousand, eleven".