101303043121987 has 4 divisors (see below), whose sum is σ = 115774906425136. Its totient is φ = 86831179818840.

The previous prime is 101303043121867. The next prime is 101303043122063. The reversal of 101303043121987 is 789121340303101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101303043121987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101303043121387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7235931651564 + ... + 7235931651577.

It is an arithmetic number, because the mean of its divisors is an integer number (28943726606284).

Almost surely, 2^{101303043121987} is an apocalyptic number.

101303043121987 is a deficient number, since it is larger than the sum of its proper divisors (14471863303149).

101303043121987 is an equidigital number, since it uses as much as digits as its factorization.

101303043121987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14471863303148.

The product of its (nonzero) digits is 108864, while the sum is 43.

The spelling of 101303043121987 in words is "one hundred one trillion, three hundred three billion, forty-three million, one hundred twenty-one thousand, nine hundred eighty-seven".