43312121434 has 8 divisors (see below), whose sum is σ = 66479070240. Its totient is φ = 21152431356.

The previous prime is 43312121431. The next prime is 43312121443. The reversal of 43312121434 is 43412121334.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×43312121434² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (43312121431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 251814574 + ... + 251814745.

It is an arithmetic number, because the mean of its divisors is an integer number (8309883780).

Almost surely, 2^43312121434 is an apocalyptic number.

43312121434 is a deficient number, since it is larger than the sum of its proper divisors (23166948806).

43312121434 is a wasteful number, since it uses less digits than its factorization.

43312121434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503629364.

The product of its digits is 6912, while the sum is 28.

Adding to 43312121434 its reverse (43412121334), we get a palindrome (86724242768).

The spelling of 43312121434 in words is "forty-three billion, three hundred twelve million, one hundred twenty-one thousand, four hundred thirty-four".