101250420641 has 2 divisors, whose sum is σ = 101250420642. Its totient is φ = 101250420640.

The previous prime is 101250420629. The next prime is 101250420763. The reversal of 101250420641 is 146024052101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51831352225 + 49419068416 = 227665^2 + 222304^2 .

It is an emirp because it is prime and its reverse (146024052101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 101250420641 - 2¹⁰ = 101250419617 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101250420641.

It is not a weakly prime, because it can be changed into another prime (101250422641) 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, 50625210320 + 50625210321.

It is an arithmetic number, because the mean of its divisors is an integer number (50625210321).

Almost surely, 2^101250420641 is an apocalyptic number.

It is an amenable number.

101250420641 is a deficient number, since it is larger than the sum of its proper divisors (1).

101250420641 is an equidigital number, since it uses as much as digits as its factorization.

101250420641 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1920, while the sum is 26.

Adding to 101250420641 its reverse (146024052101), we get a palindrome (247274472742).

The spelling of 101250420641 in words is "one hundred one billion, two hundred fifty million, four hundred twenty thousand, six hundred forty-one".