243000211432 has 64 divisors (see below), whose sum is σ = 520012431360. Its totient is φ = 105376075200.

The previous prime is 243000211393. The next prime is 243000211477. The reversal of 243000211432 is 234112000342.

It is a super-3 number, since 3×243000211432³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 618457 + ... + 931927.

It is an arithmetic number, because the mean of its divisors is an integer number (8125194240).

Almost surely, 2^243000211432 is an apocalyptic number.

243000211432 is a gapful number since it is divisible by the number (22) 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 243000211432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (260006215680).

243000211432 is an abundant number, since it is smaller than the sum of its proper divisors (277012219928).

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

243000211432 is a wasteful number, since it uses less digits than its factorization.

243000211432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 313894 (or 313890 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 243000211432 its reverse (234112000342), we get a palindrome (477112211774).

The spelling of 243000211432 in words is "two hundred forty-three billion, two hundred eleven thousand, four hundred thirty-two".