100000215825907 has 2 divisors, whose sum is σ = 100000215825908. Its totient is φ = 100000215825906.

The previous prime is 100000215825833. The next prime is 100000215825929. The reversal of 100000215825907 is 709528512000001.

It is a strong prime.

It is an emirp because it is prime and its reverse (709528512000001) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100000215825907 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 100000215825907.

It is not a weakly prime, because it can be changed into another prime (100000215825967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000107912953 + 50000107912954.

It is an arithmetic number, because the mean of its divisors is an integer number (50000107912954).

Almost surely, 2^{100000215825907} is an apocalyptic number.

100000215825907 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000215825907 is an equidigital number, since it uses as much as digits as its factorization.

100000215825907 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50400, while the sum is 40.

Adding to 100000215825907 its reverse (709528512000001), we get a palindrome (809528727825908).

The spelling of 100000215825907 in words is "one hundred trillion, two hundred fifteen million, eight hundred twenty-five thousand, nine hundred seven".