7120327481 has 4 divisors (see below), whose sum is σ = 7539170292. Its totient is φ = 6701484672.

The previous prime is 7120327477. The next prime is 7120327483. The reversal of 7120327481 is 1847230217.

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

It can be written as a sum of positive squares in 2 ways, for example, as 4639789456 + 2480538025 = 68116^2 + 49805^2 .

It is a cyclic number.

It is not a de Polignac number, because 7120327481 - 2² = 7120327477 is a prime.

It is a super-2 number, since 2×7120327481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7120327483) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 209421380 + ... + 209421413.

It is an arithmetic number, because the mean of its divisors is an integer number (1884792573).

Almost surely, 2^7120327481 is an apocalyptic number.

It is an amenable number.

7120327481 is a deficient number, since it is larger than the sum of its proper divisors (418842811).

7120327481 is a wasteful number, since it uses less digits than its factorization.

7120327481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418842810.

The product of its (nonzero) digits is 18816, while the sum is 35.

The square root of 7120327481 is about 84382.0329276322. The cubic root of 7120327481 is about 1923.8298375226.

Adding to 7120327481 its reverse (1847230217), we get a palindrome (8967557698).

The spelling of 7120327481 in words is "seven billion, one hundred twenty million, three hundred twenty-seven thousand, four hundred eighty-one".