43234321112421 has 64 divisors (see below), whose sum is σ = 60889284403200. Its totient is φ = 27249097075200.

The previous prime is 43234321112351. The next prime is 43234321112429. The reversal of 43234321112421 is 12421112343234.

It is not a de Polignac number, because 43234321112421 - 2²⁶ = 43234254003557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43234321112429) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1446868401 + ... + 1446898281.

It is an arithmetic number, because the mean of its divisors is an integer number (951395068800).

Almost surely, 2^{43234321112421} is an apocalyptic number.

It is an amenable number.

43234321112421 is a deficient number, since it is larger than the sum of its proper divisors (17654963290779).

43234321112421 is a wasteful number, since it uses less digits than its factorization.

43234321112421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31730.

The product of its digits is 27648, while the sum is 33.

Adding to 43234321112421 its reverse (12421112343234), we get a palindrome (55655433455655).

The spelling of 43234321112421 in words is "forty-three trillion, two hundred thirty-four billion, three hundred twenty-one million, one hundred twelve thousand, four hundred twenty-one".