11824170121 has 3 divisors (see below), whose sum is σ = 11824278861. Its totient is φ = 11824061382.

The previous prime is 11824170103. The next prime is 11824170139. The reversal of 11824170121 is 12107142811.

The square root of 11824170121 is 108739.

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

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (11824170103) and next prime (11824170139).

It is not a de Polignac number, because 11824170121 - 2¹⁷ = 11824039049 is a prime.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11824170121.

It is not an unprimeable number, because it can be changed into a prime (11824170101) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 54370 + ... + 163108.

It is an arithmetic number, because the mean of its divisors is an integer number (3941426287).

Almost surely, 2^11824170121 is an apocalyptic number.

11824170121 is the 108739-th square number.

11824170121 is the 54370-th centered octagonal number.

It is an amenable number.

11824170121 is a deficient number, since it is larger than the sum of its proper divisors (108740).

11824170121 is an frugal number, since it uses more digits than its factorization.

11824170121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217478 (or 108739 counting only the distinct ones).

The product of its (nonzero) digits is 896, while the sum is 28.

The spelling of 11824170121 in words is "eleven billion, eight hundred twenty-four million, one hundred seventy thousand, one hundred twenty-one".