43421131200 has 84 divisors (see below), whose sum is σ = 142457510360. Its totient is φ = 11578967040.

The previous prime is 43421131183. The next prime is 43421131249. The reversal of 43421131200 is 213112434.

It is a super-2 number, since 2×43421131200² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4518235 + ... + 4527834.

Almost surely, 2^43421131200 is an apocalyptic number.

43421131200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

43421131200 is an abundant number, since it is smaller than the sum of its proper divisors (99036379160).

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

43421131200 is a wasteful number, since it uses less digits than its factorization.

43421131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9046094 (or 9046079 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 43421131200 its reverse (213112434), we get a palindrome (43634243634).

The spelling of 43421131200 in words is "forty-three billion, four hundred twenty-one million, one hundred thirty-one thousand, two hundred".