101000009489 has 2 divisors, whose sum is σ = 101000009490. Its totient is φ = 101000009488.

The previous prime is 101000009483. The next prime is 101000009567. The reversal of 101000009489 is 984900000101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 97909539025 + 3090470464 = 312905^2 + 55592^2 .

It is a cyclic number.

It is not a de Polignac number, because 101000009489 - 2⁸ = 101000009233 is a prime.

It is a super-2 number, since 2×101000009489² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (101000009483) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50500004744 + 50500004745.

It is an arithmetic number, because the mean of its divisors is an integer number (50500004745).

Almost surely, 2^101000009489 is an apocalyptic number.

It is an amenable number.

101000009489 is a deficient number, since it is larger than the sum of its proper divisors (1).

101000009489 is an equidigital number, since it uses as much as digits as its factorization.

101000009489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 32.

The spelling of 101000009489 in words is "one hundred one billion, nine thousand, four hundred eighty-nine".