7131305811 has 16 divisors (see below), whose sum is σ = 10869899264. Its totient is φ = 4073851584.

The previous prime is 7131305807. The next prime is 7131305821. The reversal of 7131305811 is 1185031317.

It is not a de Polignac number, because 7131305811 - 2² = 7131305807 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7131305821) 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 15 ways as a sum of consecutive naturals, for example, 27855 + ... + 122631.

It is an arithmetic number, because the mean of its divisors is an integer number (679368704).

Almost surely, 2^7131305811 is an apocalyptic number.

7131305811 is a deficient number, since it is larger than the sum of its proper divisors (3738593453).

7131305811 is a wasteful number, since it uses less digits than its factorization.

7131305811 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98370.

The product of its (nonzero) digits is 2520, while the sum is 30.

The square root of 7131305811 is about 84447.0592205555. The cubic root of 7131305811 is about 1924.8180689141.

The spelling of 7131305811 in words is "seven billion, one hundred thirty-one million, three hundred five thousand, eight hundred eleven".