124200309987 has 16 divisors (see below), whose sum is σ = 198154341280. Its totient is φ = 76430959776.

The previous prime is 124200309983. The next prime is 124200309997. The reversal of 124200309987 is 789903002421.

It is not a de Polignac number, because 124200309987 - 2² = 124200309983 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (124200309983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 176923168 + ... + 176923869.

It is an arithmetic number, because the mean of its divisors is an integer number (12384646330).

Almost surely, 2^124200309987 is an apocalyptic number.

124200309987 is a deficient number, since it is larger than the sum of its proper divisors (73954031293).

124200309987 is a wasteful number, since it uses less digits than its factorization.

124200309987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 353847059 (or 353847053 counting only the distinct ones).

The product of its (nonzero) digits is 217728, while the sum is 45.

The spelling of 124200309987 in words is "one hundred twenty-four billion, two hundred million, three hundred nine thousand, nine hundred eighty-seven".