101303987 has 4 divisors (see below), whose sum is σ = 102348456. Its totient is φ = 100259520.

The previous prime is 101303977. The next prime is 101303999. The reversal of 101303987 is 789303101.

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-101303987 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101303927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 522089 + ... + 522282.

It is an arithmetic number, because the mean of its divisors is an integer number (25587114).

Almost surely, 2^101303987 is an apocalyptic number.

101303987 is a deficient number, since it is larger than the sum of its proper divisors (1044469).

101303987 is an equidigital number, since it uses as much as digits as its factorization.

101303987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1044468.

The product of its (nonzero) digits is 4536, while the sum is 32.

The square root of 101303987 is about 10064.9881768435. The cubic root of 101303987 is about 466.1677007598.

The spelling of 101303987 in words is "one hundred one million, three hundred three thousand, nine hundred eighty-seven".