100650421517 has 2 divisors, whose sum is σ = 100650421518. Its totient is φ = 100650421516.

The previous prime is 100650421451. The next prime is 100650421519. The reversal of 100650421517 is 715124056001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61868602756 + 38781818761 = 248734^2 + 196931^2 .

It is a cyclic number.

It is not a de Polignac number, because 100650421517 - 2²⁶ = 100583312653 is a prime.

Together with 100650421519, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100650421519) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50325210758 + 50325210759.

It is an arithmetic number, because the mean of its divisors is an integer number (50325210759).

Almost surely, 2^100650421517 is an apocalyptic number.

It is an amenable number.

100650421517 is a deficient number, since it is larger than the sum of its proper divisors (1).

100650421517 is an equidigital number, since it uses as much as digits as its factorization.

100650421517 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8400, while the sum is 32.

Adding to 100650421517 its reverse (715124056001), we get a palindrome (815774477518).

The spelling of 100650421517 in words is "one hundred billion, six hundred fifty million, four hundred twenty-one thousand, five hundred seventeen".