101365652581 has 2 divisors, whose sum is σ = 101365652582. Its totient is φ = 101365652580.

The previous prime is 101365652533. The next prime is 101365652627. The reversal of 101365652581 is 185256563101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 95314212900 + 6051439681 = 308730^2 + 77791^2 .

It is a cyclic number.

It is not a de Polignac number, because 101365652581 - 2¹⁵ = 101365619813 is a prime.

It is a super-2 number, since 2×101365652581² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101365652681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50682826290 + 50682826291.

It is an arithmetic number, because the mean of its divisors is an integer number (50682826291).

Almost surely, 2^101365652581 is an apocalyptic number.

It is an amenable number.

101365652581 is a deficient number, since it is larger than the sum of its proper divisors (1).

101365652581 is an equidigital number, since it uses as much as digits as its factorization.

101365652581 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216000, while the sum is 43.

The spelling of 101365652581 in words is "one hundred one billion, three hundred sixty-five million, six hundred fifty-two thousand, five hundred eighty-one".