2131878703 has 2 divisors, whose sum is σ = 2131878704. Its totient is φ = 2131878702.

The previous prime is 2131878689. The next prime is 2131878713. The reversal of 2131878703 is 3078781312.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2131878703 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131878713) 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 as a sum of consecutive naturals, namely, 1065939351 + 1065939352.

It is an arithmetic number, because the mean of its divisors is an integer number (1065939352).

Almost surely, 2^2131878703 is an apocalyptic number.

2131878703 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131878703 is an equidigital number, since it uses as much as digits as its factorization.

2131878703 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 2131878703 is about 46172.2720147060. The cubic root of 2131878703 is about 1287.0265233338.

The spelling of 2131878703 in words is "two billion, one hundred thirty-one million, eight hundred seventy-eight thousand, seven hundred three".