243201431000 has 64 divisors (see below), whose sum is σ = 620826953760. Its totient is φ = 88436880000.

The previous prime is 243201430949. The next prime is 243201431111. The reversal of 243201431000 is 134102342.

It is a super-2 number, since 2×243201431000² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

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, 11043611 + ... + 11065610.

Almost surely, 2^243201431000 is an apocalyptic number.

243201431000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

243201431000 is an abundant number, since it is smaller than the sum of its proper divisors (377625522760).

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

243201431000 is a wasteful number, since it uses less digits than its factorization.

243201431000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22109253 (or 22109239 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 243201431000 its reverse (134102342), we get a palindrome (243335533342).

The spelling of 243201431000 in words is "two hundred forty-three billion, two hundred one million, four hundred thirty-one thousand".