43421134311 has 24 divisors (see below), whose sum is σ = 63922382160. Its totient is φ = 28394361216.

The previous prime is 43421134291. The next prime is 43421134319. The reversal of 43421134311 is 11343112434.

43421134311 is a `hidden beast` number, since 4 + 342 + 1 + 1 + 3 + 4 + 311 = 666.

It is not a de Polignac number, because 43421134311 - 2⁶ = 43421134247 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43421134319) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153201 + ... + 332133.

It is an arithmetic number, because the mean of its divisors is an integer number (2663432590).

Almost surely, 2^43421134311 is an apocalyptic number.

43421134311 is a deficient number, since it is larger than the sum of its proper divisors (20501247849).

43421134311 is a wasteful number, since it uses less digits than its factorization.

43421134311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179455 (or 179452 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

Adding to 43421134311 its reverse (11343112434), we get a palindrome (54764246745).

The spelling of 43421134311 in words is "forty-three billion, four hundred twenty-one million, one hundred thirty-four thousand, three hundred eleven".