101871952177 has 2 divisors, whose sum is σ = 101871952178. Its totient is φ = 101871952176.

The previous prime is 101871952159. The next prime is 101871952241. The reversal of 101871952177 is 771259178101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 99703746081 + 2168206096 = 315759^2 + 46564^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101871952177 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 101871952177.

It is not a weakly prime, because it can be changed into another prime (101871922177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50935976088 + 50935976089.

It is an arithmetic number, because the mean of its divisors is an integer number (50935976089).

Almost surely, 2^101871952177 is an apocalyptic number.

It is an amenable number.

101871952177 is a deficient number, since it is larger than the sum of its proper divisors (1).

101871952177 is an equidigital number, since it uses as much as digits as its factorization.

101871952177 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 246960, while the sum is 49.

The spelling of 101871952177 in words is "one hundred one billion, eight hundred seventy-one million, nine hundred fifty-two thousand, one hundred seventy-seven".