2015863142903 has 2 divisors, whose sum is σ = 2015863142904. Its totient is φ = 2015863142902.

The previous prime is 2015863142893. The next prime is 2015863142989. The reversal of 2015863142903 is 3092413685102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2015863142903 - 2¹⁰ = 2015863141879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2015863144903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1007931571451 + 1007931571452.

It is an arithmetic number, because the mean of its divisors is an integer number (1007931571452).

Almost surely, 2^{2015863142903} is an apocalyptic number.

2015863142903 is a deficient number, since it is larger than the sum of its proper divisors (1).

2015863142903 is an equidigital number, since it uses as much as digits as its factorization.

2015863142903 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 311040, while the sum is 44.

The spelling of 2015863142903 in words is "two trillion, fifteen billion, eight hundred sixty-three million, one hundred forty-two thousand, nine hundred three".