103121103319987 has 2 divisors, whose sum is σ = 103121103319988. Its totient is φ = 103121103319986.

The previous prime is 103121103319933. The next prime is 103121103320003. The reversal of 103121103319987 is 789913301121301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103121103319987 - 2⁷ = 103121103319859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103121103319987.

It is not a weakly prime, because it can be changed into another prime (103121103319687) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51560551659993 + 51560551659994.

It is an arithmetic number, because the mean of its divisors is an integer number (51560551659994).

Almost surely, 2^{103121103319987} is an apocalyptic number.

103121103319987 is a deficient number, since it is larger than the sum of its proper divisors (1).

103121103319987 is an equidigital number, since it uses as much as digits as its factorization.

103121103319987 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 244944, while the sum is 49.

The spelling of 103121103319987 in words is "one hundred three trillion, one hundred twenty-one billion, one hundred three million, three hundred nineteen thousand, nine hundred eighty-seven".