869990102101 has 2 divisors, whose sum is σ = 869990102102. Its totient is φ = 869990102100.

The previous prime is 869990102017. The next prime is 869990102123. The reversal of 869990102101 is 101201099968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 615746243025 + 254243859076 = 784695^2 + 504226^2 .

It is a cyclic number.

It is not a de Polignac number, because 869990102101 - 2⁷ = 869990101973 is a prime.

It is a super-2 number, since 2×869990102101² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (869990102161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 434995051050 + 434995051051.

It is an arithmetic number, because the mean of its divisors is an integer number (434995051051).

Almost surely, 2^869990102101 is an apocalyptic number.

It is an amenable number.

869990102101 is a deficient number, since it is larger than the sum of its proper divisors (1).

869990102101 is an equidigital number, since it uses as much as digits as its factorization.

869990102101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 46.

The spelling of 869990102101 in words is "eight hundred sixty-nine billion, nine hundred ninety million, one hundred two thousand, one hundred one".