43505134352231 has 16 divisors (see below), whose sum is σ = 44591706725280. Its totient is φ = 42421970021760.

The previous prime is 43505134352153. The next prime is 43505134352249. The reversal of 43505134352231 is 13225343150534.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-43505134352231 is a prime.

It is a super-2 number, since 2×43505134352231² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43505134352291) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 980242661 + ... + 980287041.

It is an arithmetic number, because the mean of its divisors is an integer number (2786981670330).

Almost surely, 2^{43505134352231} is an apocalyptic number.

43505134352231 is a deficient number, since it is larger than the sum of its proper divisors (1086572373049).

43505134352231 is a wasteful number, since it uses less digits than its factorization.

43505134352231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82226.

The product of its (nonzero) digits is 648000, while the sum is 41.

The spelling of 43505134352231 in words is "forty-three trillion, five hundred five billion, one hundred thirty-four million, three hundred fifty-two thousand, two hundred thirty-one".