101249412499 has 4 divisors (see below), whose sum is σ = 101255658336. Its totient is φ = 101243166664.

The previous prime is 101249412491. The next prime is 101249412521. The reversal of 101249412499 is 994214942101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 101249412499 - 2³ = 101249412491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101249412491) 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, 3098539 + ... + 3131044.

It is an arithmetic number, because the mean of its divisors is an integer number (25313914584).

Almost surely, 2^101249412499 is an apocalyptic number.

101249412499 is a deficient number, since it is larger than the sum of its proper divisors (6245837).

101249412499 is an equidigital number, since it uses as much as digits as its factorization.

101249412499 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6245836.

The product of its (nonzero) digits is 186624, while the sum is 46.

The spelling of 101249412499 in words is "one hundred one billion, two hundred forty-nine million, four hundred twelve thousand, four hundred ninety-nine".