7020131131 has 4 divisors (see below), whose sum is σ = 7560141232. Its totient is φ = 6480121032.

The previous prime is 7020131089. The next prime is 7020131141. The reversal of 7020131131 is 1311310207.

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

It is a cyclic number.

It is not a de Polignac number, because 7020131131 - 2⁷ = 7020131003 is a prime.

It is a super-2 number, since 2×7020131131² = 98564482192870678322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7020131099 and 7020131108.

It is not an unprimeable number, because it can be changed into a prime (7020131141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 270005031 + ... + 270005056.

It is an arithmetic number, because the mean of its divisors is an integer number (1890035308).

Almost surely, 2^7020131131 is an apocalyptic number.

7020131131 is a deficient number, since it is larger than the sum of its proper divisors (540010101).

7020131131 is a wasteful number, since it uses less digits than its factorization.

7020131131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540010100.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 7020131131 is about 83786.2227994555. Note that the first 3 decimals coincide. The cubic root of 7020131131 is about 1914.7632118654.

Adding to 7020131131 its reverse (1311310207), we get a palindrome (8331441338).

The spelling of 7020131131 in words is "seven billion, twenty million, one hundred thirty-one thousand, one hundred thirty-one".