118362833521 has 3 divisors (see below), whose sum is σ = 118363177561. Its totient is φ = 118362489482.

The previous prime is 118362833503. The next prime is 118362833527. The reversal of 118362833521 is 125338263811.

The square root of 118362833521 is 344039.

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 not a de Polignac number, because 118362833521 - 2⁹ = 118362833009 is a prime.

It is a super-2 number, since 2×118362833521² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (118362833527) 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, 172020 + ... + 516058.

Almost surely, 2^118362833521 is an apocalyptic number.

118362833521 is the 344039-th square number.

118362833521 is the 172020-th centered octagonal number.

It is an amenable number.

118362833521 is a deficient number, since it is larger than the sum of its proper divisors (344040).

118362833521 is an frugal number, since it uses more digits than its factorization.

118362833521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 688078 (or 344039 counting only the distinct ones).

The product of its digits is 207360, while the sum is 43.

The spelling of 118362833521 in words is "one hundred eighteen billion, three hundred sixty-two million, eight hundred thirty-three thousand, five hundred twenty-one".