2020311131 has 2 divisors, whose sum is σ = 2020311132. Its totient is φ = 2020311130.

The previous prime is 2020311119. The next prime is 2020311151. The reversal of 2020311131 is 1311130202.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2020311131 is a prime.

It is a super-2 number, since 2×2020311131² = 8163314132084998322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2020311151) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010155565 + 1010155566.

It is an arithmetic number, because the mean of its divisors is an integer number (1010155566).

Almost surely, 2^2020311131 is an apocalyptic number.

2020311131 is a deficient number, since it is larger than the sum of its proper divisors (1).

2020311131 is an equidigital number, since it uses as much as digits as its factorization.

2020311131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2020311131 is about 44947.8712621632. The cubic root of 2020311131 is about 1264.1717629890.

Adding to 2020311131 its reverse (1311130202), we get a palindrome (3331441333).

The spelling of 2020311131 in words is "two billion, twenty million, three hundred eleven thousand, one hundred thirty-one".