101001000689 has 2 divisors, whose sum is σ = 101001000690. Its totient is φ = 101001000688.

The previous prime is 101001000673. The next prime is 101001000701. The reversal of 101001000689 is 986000100101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82751152225 + 18249848464 = 287665^2 + 135092^2 .

It is a cyclic number.

It is not a de Polignac number, because 101001000689 - 2⁴ = 101001000673 is a prime.

It is not a weakly prime, because it can be changed into another prime (101031000689) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500500344 + 50500500345.

It is an arithmetic number, because the mean of its divisors is an integer number (50500500345).

Almost surely, 2^101001000689 is an apocalyptic number.

It is an amenable number.

101001000689 is a deficient number, since it is larger than the sum of its proper divisors (1).

101001000689 is an equidigital number, since it uses as much as digits as its factorization.

101001000689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 101001000689 in words is "one hundred one billion, one million, six hundred eighty-nine", and thus it is an aban number.