11903183109801 has 81 divisors (see below), whose sum is σ = 18585444261423. Its totient is φ = 7339602608640.

The previous prime is 11903183109787. The next prime is 11903183109803. The reversal of 11903183109801 is 10890138130911.

It is a happy number.

The square root of 11903183109801 is 3450099.

It is a perfect power (a square), and thus also a powerful number.

11903183109801 is a `hidden beast` number, since 1 + 19 + 0 + 318 + 310 + 9 + 8 + 0 + 1 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 11516826386025 + 386356723776 = 3393645^2 + 621576^2 .

It is a de Polignac number, because none of the positive numbers 2^k-11903183109801 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11903183109803) by changing a digit.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 10733257435 + ... + 10733258543.

Almost surely, 2^{11903183109801} is an apocalyptic number.

11903183109801 is the 3450099-th square number.

11903183109801 is the 1725050-th centered octagonal number.

It is an amenable number.

11903183109801 is a deficient number, since it is larger than the sum of its proper divisors (6682261151622).

11903183109801 is an frugal number, since it uses more digits than its factorization.

11903183109801 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2380 (or 1190 counting only the distinct ones).

The product of its (nonzero) digits is 46656, while the sum is 45.

The spelling of 11903183109801 in words is "eleven trillion, nine hundred three billion, one hundred eighty-three million, one hundred nine thousand, eight hundred one".