2130311987 has 2 divisors, whose sum is σ = 2130311988. Its totient is φ = 2130311986.

The previous prime is 2130311969. The next prime is 2130311993. The reversal of 2130311987 is 7891130312.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2130311987 - 2⁶ = 2130311923 is a prime.

It is not a weakly prime, because it can be changed into another prime (2130316987) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065155993 + 1065155994.

It is an arithmetic number, because the mean of its divisors is an integer number (1065155994).

Almost surely, 2^2130311987 is an apocalyptic number.

2130311987 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130311987 is an equidigital number, since it uses as much as digits as its factorization.

2130311987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 2130311987 is about 46155.3029130998. The cubic root of 2130311987 is about 1286.7111678062.

The spelling of 2130311987 in words is "two billion, one hundred thirty million, three hundred eleven thousand, nine hundred eighty-seven".