101391346877 has 2 divisors, whose sum is σ = 101391346878. Its totient is φ = 101391346876.

The previous prime is 101391346799. The next prime is 101391346897. The reversal of 101391346877 is 778643193101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 57497325796 + 43894021081 = 239786^2 + 209509^2 .

It is an emirp because it is prime and its reverse (778643193101) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101391346877 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101391346897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50695673438 + 50695673439.

It is an arithmetic number, because the mean of its divisors is an integer number (50695673439).

Almost surely, 2^101391346877 is an apocalyptic number.

It is an amenable number.

101391346877 is a deficient number, since it is larger than the sum of its proper divisors (1).

101391346877 is an equidigital number, since it uses as much as digits as its factorization.

101391346877 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 762048, while the sum is 50.

The spelling of 101391346877 in words is "one hundred one billion, three hundred ninety-one million, three hundred forty-six thousand, eight hundred seventy-seven".