101161064989 has 2 divisors, whose sum is σ = 101161064990. Its totient is φ = 101161064988.

The previous prime is 101161064987. The next prime is 101161065007. The reversal of 101161064989 is 989460161101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 100944092089 + 216972900 = 317717^2 + 14730^2 .

It is a cyclic number.

It is not a de Polignac number, because 101161064989 - 2¹ = 101161064987 is a prime.

It is a super-2 number, since 2×101161064989² (a number of 23 digits) contains 22 as substring.

Together with 101161064987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101161064987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50580532494 + 50580532495.

It is an arithmetic number, because the mean of its divisors is an integer number (50580532495).

Almost surely, 2^101161064989 is an apocalyptic number.

It is an amenable number.

101161064989 is a deficient number, since it is larger than the sum of its proper divisors (1).

101161064989 is an equidigital number, since it uses as much as digits as its factorization.

101161064989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 93312, while the sum is 46.

The spelling of 101161064989 in words is "one hundred one billion, one hundred sixty-one million, sixty-four thousand, nine hundred eighty-nine".