43123232134 has 4 divisors (see below), whose sum is σ = 64684848204. Its totient is φ = 21561616066.

The previous prime is 43123232123. The next prime is 43123232137.

It is a happy number.

43123232134 is nontrivially palindromic in base 10.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×43123232134² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43123232137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10780808032 + ... + 10780808035.

It is an arithmetic number, because the mean of its divisors is an integer number (16171212051).

Almost surely, 2^43123232134 is an apocalyptic number.

43123232134 is a deficient number, since it is larger than the sum of its proper divisors (21561616070).

43123232134 is a wasteful number, since it uses less digits than its factorization.

43123232134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21561616069.

The product of its digits is 10368, while the sum is 28.

The spelling of 43123232134 in words is "forty-three billion, one hundred twenty-three million, two hundred thirty-two thousand, one hundred thirty-four".