101593410781 has 2 divisors, whose sum is σ = 101593410782. Its totient is φ = 101593410780.

The previous prime is 101593410773. The next prime is 101593410797. The reversal of 101593410781 is 187014395101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101375376025 + 218034756 = 318395^2 + 14766^2 .

It is a cyclic number.

It is not a de Polignac number, because 101593410781 - 2³ = 101593410773 is a prime.

It is a super-2 number, since 2×101593410781² (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 (101593410181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50796705390 + 50796705391.

It is an arithmetic number, because the mean of its divisors is an integer number (50796705391).

Almost surely, 2^101593410781 is an apocalyptic number.

It is an amenable number.

101593410781 is a deficient number, since it is larger than the sum of its proper divisors (1).

101593410781 is an equidigital number, since it uses as much as digits as its factorization.

101593410781 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30240, while the sum is 40.

The spelling of 101593410781 in words is "one hundred one billion, five hundred ninety-three million, four hundred ten thousand, seven hundred eighty-one".