100242310552621 has 2 divisors, whose sum is σ = 100242310552622. Its totient is φ = 100242310552620.

The previous prime is 100242310552543. The next prime is 100242310552669. The reversal of 100242310552621 is 126255013242001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 79543905350121 + 20698405202500 = 8918739^2 + 4549550^2 .

It is a cyclic number.

It is not a de Polignac number, because 100242310552621 - 2²¹ = 100242308455469 is a prime.

It is a super-2 number, since 2×100242310552621² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100242310552691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50121155276310 + 50121155276311.

It is an arithmetic number, because the mean of its divisors is an integer number (50121155276311).

Almost surely, 2^{100242310552621} is an apocalyptic number.

It is an amenable number.

100242310552621 is a deficient number, since it is larger than the sum of its proper divisors (1).

100242310552621 is an equidigital number, since it uses as much as digits as its factorization.

100242310552621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28800, while the sum is 34.

Adding to 100242310552621 its reverse (126255013242001), we get a palindrome (226497323794622).

The spelling of 100242310552621 in words is "one hundred trillion, two hundred forty-two billion, three hundred ten million, five hundred fifty-two thousand, six hundred twenty-one".