101955392909 has 4 divisors (see below), whose sum is σ = 107321466240. Its totient is φ = 96589319580.

The previous prime is 101955392857. The next prime is 101955392921. The reversal of 101955392909 is 909293559101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101955392909 - 2¹⁶ = 101955327373 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101955392939) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2683036637 + ... + 2683036674.

It is an arithmetic number, because the mean of its divisors is an integer number (26830366560).

Almost surely, 2^101955392909 is an apocalyptic number.

101955392909 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

101955392909 is a deficient number, since it is larger than the sum of its proper divisors (5366073331).

101955392909 is an equidigital number, since it uses as much as digits as its factorization.

101955392909 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5366073330.

The product of its (nonzero) digits is 984150, while the sum is 53.

The spelling of 101955392909 in words is "one hundred one billion, nine hundred fifty-five million, three hundred ninety-two thousand, nine hundred nine".