43112160612161 has 4 divisors (see below), whose sum is σ = 43112867117232. Its totient is φ = 43111454107092.

The previous prime is 43112160612151. The next prime is 43112160612253. The reversal of 43112160612161 is 16121606121134.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 43112160612161 - 2¹⁰ = 43112160611137 is a prime.

It is a super-2 number, since 2×43112160612161² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (43112160612151) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353160995 + ... + 353283048.

It is an arithmetic number, because the mean of its divisors is an integer number (10778216779308).

Almost surely, 2^{43112160612161} is an apocalyptic number.

It is an amenable number.

43112160612161 is a deficient number, since it is larger than the sum of its proper divisors (706505071).

43112160612161 is an equidigital number, since it uses as much as digits as its factorization.

43112160612161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 706505070.

The product of its (nonzero) digits is 10368, while the sum is 35.

Adding to 43112160612161 its reverse (16121606121134), we get a palindrome (59233766733295).

The spelling of 43112160612161 in words is "forty-three trillion, one hundred twelve billion, one hundred sixty million, six hundred twelve thousand, one hundred sixty-one".