10199830987 has 4 divisors (see below), whose sum is σ = 10201431856. Its totient is φ = 10198230120.

The previous prime is 10199830943. The next prime is 10199830997. The reversal of 10199830987 is 78903899101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 78903899101 = 275827 ⋅286063.

It is a cyclic number.

It is not a de Polignac number, because 10199830987 - 2⁷ = 10199830859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10199830937) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 790839 + ... + 803632.

It is an arithmetic number, because the mean of its divisors is an integer number (2550357964).

Almost surely, 2^10199830987 is an apocalyptic number.

10199830987 is a deficient number, since it is larger than the sum of its proper divisors (1600869).

10199830987 is an equidigital number, since it uses as much as digits as its factorization.

10199830987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1600868.

The product of its (nonzero) digits is 979776, while the sum is 55.

The spelling of 10199830987 in words is "ten billion, one hundred ninety-nine million, eight hundred thirty thousand, nine hundred eighty-seven".