1040121403987 has 2 divisors, whose sum is σ = 1040121403988. Its totient is φ = 1040121403986.

The previous prime is 1040121403963. The next prime is 1040121404041. The reversal of 1040121403987 is 7893041210401.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1040121403987 - 2³⁵ = 1005761665619 is a prime.

It is not a weakly prime, because it can be changed into another prime (1040121403487) 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, 520060701993 + 520060701994.

It is an arithmetic number, because the mean of its divisors is an integer number (520060701994).

Almost surely, 2^{1040121403987} is an apocalyptic number.

1040121403987 is a deficient number, since it is larger than the sum of its proper divisors (1).

1040121403987 is an equidigital number, since it uses as much as digits as its factorization.

1040121403987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 1040121403987 in words is "one trillion, forty billion, one hundred twenty-one million, four hundred three thousand, nine hundred eighty-seven".