243400111060 has 48 divisors (see below), whose sum is σ = 525128017680. Its totient is φ = 94697441280.

The previous prime is 243400111039. The next prime is 243400111061. The reversal of 243400111060 is 60111004342.

It can be written as a sum of positive squares in 8 ways, for example, as 562069264 + 242838041796 = 23708^2 + 492786^2 .

It is a super-2 number, since 2×243400111060² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243400111061) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2256846 + ... + 2362234.

It is an arithmetic number, because the mean of its divisors is an integer number (10940167035).

Almost surely, 2^243400111060 is an apocalyptic number.

243400111060 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243400111060 is an abundant number, since it is smaller than the sum of its proper divisors (281727906620).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

243400111060 is a wasteful number, since it uses less digits than its factorization.

243400111060 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108556 (or 108554 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

The spelling of 243400111060 in words is "two hundred forty-three billion, four hundred million, one hundred eleven thousand, sixty".