120617100243 has 20 divisors (see below), whose sum is σ = 180234645888. Its totient is φ = 80387503920.

The previous prime is 120617100211. The next prime is 120617100251. The reversal of 120617100243 is 342001716021.

120617100243 is a `hidden beast` number, since 1 + 2 + 0 + 617 + 1 + 0 + 0 + 2 + 43 = 666.

It is not a de Polignac number, because 120617100243 - 2⁵ = 120617100211 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (120617100743) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 55105 + ... + 494237.

Almost surely, 2^120617100243 is an apocalyptic number.

120617100243 is a deficient number, since it is larger than the sum of its proper divisors (59617545645).

120617100243 is an equidigital number, since it uses as much as digits as its factorization.

120617100243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 442536 (or 442527 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 120617100243 its reverse (342001716021), we get a palindrome (462618816264).

The spelling of 120617100243 in words is "one hundred twenty billion, six hundred seventeen million, one hundred thousand, two hundred forty-three".