43423201332131 has 4 divisors (see below), whose sum is σ = 43426907343792. Its totient is φ = 43419495320472.

The previous prime is 43423201332047. The next prime is 43423201332169. The reversal of 43423201332131 is 13123310232434.

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

It is a cyclic number.

It is not a de Polignac number, because 43423201332131 - 2²⁶ = 43423134223267 is a prime.

It is a super-2 number, since 2×43423201332131² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (43423201332031) 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, 1852988255 + ... + 1853011688.

It is an arithmetic number, because the mean of its divisors is an integer number (10856726835948).

Almost surely, 2^{43423201332131} is an apocalyptic number.

43423201332131 is a deficient number, since it is larger than the sum of its proper divisors (3706011661).

43423201332131 is a wasteful number, since it uses less digits than its factorization.

43423201332131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3706011660.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 43423201332131 its reverse (13123310232434), we get a palindrome (56546511564565).

The spelling of 43423201332131 in words is "forty-three trillion, four hundred twenty-three billion, two hundred one million, three hundred thirty-two thousand, one hundred thirty-one".