43132421434 has 4 divisors (see below), whose sum is σ = 64698632154. Its totient is φ = 21566210716.

The previous prime is 43132421411. The next prime is 43132421447. The reversal of 43132421434 is 43412423134.

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

It can be written as a sum of positive squares in only one way, i.e., 43045875625 + 86545809 = 207475^2 + 9303^2 .

It is a junction number, because it is equal to n+sod(n) for n = 43132421396 and 43132421405.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10783105357 + ... + 10783105360.

Almost surely, 2^43132421434 is an apocalyptic number.

43132421434 is a deficient number, since it is larger than the sum of its proper divisors (21566210720).

43132421434 is a wasteful number, since it uses less digits than its factorization.

43132421434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21566210719.

The product of its digits is 27648, while the sum is 31.

Adding to 43132421434 its reverse (43412423134), we get a palindrome (86544844568).

The spelling of 43132421434 in words is "forty-three billion, one hundred thirty-two million, four hundred twenty-one thousand, four hundred thirty-four".