243400102000 has 160 divisors (see below), whose sum is σ = 648408017088. Its totient is φ = 87632000000.

The previous prime is 243400101979. The next prime is 243400102007. The reversal of 243400102000 is 201004342.

It is a super-2 number, since 2×243400102000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243400102007) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2167230 + ... + 2276770.

Almost surely, 2^243400102000 is an apocalyptic number.

243400102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 243400102000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (324204008544).

243400102000 is an abundant number, since it is smaller than the sum of its proper divisors (405007915088).

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

243400102000 is a wasteful number, since it uses less digits than its factorization.

243400102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109676 (or 109660 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 243400102000 its reverse (201004342), we get a palindrome (243601106342).

The spelling of 243400102000 in words is "two hundred forty-three billion, four hundred million, one hundred two thousand".