1203315026987 has 2 divisors, whose sum is σ = 1203315026988. Its totient is φ = 1203315026986.

The previous prime is 1203315026939. The next prime is 1203315027091. The reversal of 1203315026987 is 7896205133021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1203315026987 - 2⁶ = 1203315026923 is a prime.

It is not a weakly prime, because it can be changed into another prime (1203315026687) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 601657513493 + 601657513494.

It is an arithmetic number, because the mean of its divisors is an integer number (601657513494).

Almost surely, 2^{1203315026987} is an apocalyptic number.

1203315026987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1203315026987 is an equidigital number, since it uses as much as digits as its factorization.

1203315026987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 544320, while the sum is 47.

The spelling of 1203315026987 in words is "one trillion, two hundred three billion, three hundred fifteen million, twenty-six thousand, nine hundred eighty-seven".