100145425521121 has 2 divisors, whose sum is σ = 100145425521122. Its totient is φ = 100145425521120.

The previous prime is 100145425521109. The next prime is 100145425521137. The reversal of 100145425521121 is 121125524541001.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64629058208400 + 35516367312721 = 8039220^2 + 5959561^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100145425521121 is a prime.

It is not a weakly prime, because it can be changed into another prime (100145425521221) 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 as a sum of consecutive naturals, namely, 50072712760560 + 50072712760561.

It is an arithmetic number, because the mean of its divisors is an integer number (50072712760561).

Almost surely, 2^{100145425521121} is an apocalyptic number.

It is an amenable number.

100145425521121 is a deficient number, since it is larger than the sum of its proper divisors (1).

100145425521121 is an equidigital number, since it uses as much as digits as its factorization.

100145425521121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 16000, while the sum is 34.

The spelling of 100145425521121 in words is "one hundred trillion, one hundred forty-five billion, four hundred twenty-five million, five hundred twenty-one thousand, one hundred twenty-one".