43134103521 has 12 divisors (see below), whose sum is σ = 62316052500. Its totient is φ = 28750883040.

The previous prime is 43134103499. The next prime is 43134103567. The reversal of 43134103521 is 12530143134.

It is a happy number.

43134103521 is a `hidden beast` number, since 4 + 3 + 1 + 34 + 103 + 521 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 25483652496 + 17650451025 = 159636^2 + 132855^2 .

It is not a de Polignac number, because 43134103521 - 2⁵ = 43134103489 is a prime.

It is not an unprimeable number, because it can be changed into a prime (43134103591) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 379146 + ... + 479603.

It is an arithmetic number, because the mean of its divisors is an integer number (5193004375).

Almost surely, 2^43134103521 is an apocalyptic number.

It is an amenable number.

43134103521 is a deficient number, since it is larger than the sum of its proper divisors (19181948979).

43134103521 is a wasteful number, since it uses less digits than its factorization.

43134103521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864336 (or 864333 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 43134103521 its reverse (12530143134), we get a palindrome (55664246655).

The spelling of 43134103521 in words is "forty-three billion, one hundred thirty-four million, one hundred three thousand, five hundred twenty-one".