101243242215 has 48 divisors (see below), whose sum is σ = 180059962368. Its totient is φ = 52596589248.

The previous prime is 101243242213. The next prime is 101243242223. The reversal of 101243242215 is 512242342101.

101243242215 is a `hidden beast` number, since 1 + 0 + 1 + 2 + 432 + 4 + 221 + 5 = 666.

It is not a de Polignac number, because 101243242215 - 2¹ = 101243242213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101243242213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 638862 + ... + 781428.

It is an arithmetic number, because the mean of its divisors is an integer number (3751249216).

Almost surely, 2^101243242215 is an apocalyptic number.

101243242215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

101243242215 is a deficient number, since it is larger than the sum of its proper divisors (78816720153).

101243242215 is a wasteful number, since it uses less digits than its factorization.

101243242215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142988 (or 142985 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 101243242215 its reverse (512242342101), we get a palindrome (613485584316).

The spelling of 101243242215 in words is "one hundred one billion, two hundred forty-three million, two hundred forty-two thousand, two hundred fifteen".