32405444123 has 4 divisors (see below), whose sum is σ = 34898170608. Its totient is φ = 29912717640.

The previous prime is 32405444077. The next prime is 32405444153. The reversal of 32405444123 is 32144450423.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32144450423 = 23 ⋅1397584801.

It is not a de Polignac number, because 32405444123 - 2¹⁴ = 32405427739 is a prime.

It is a super-2 number, since 2×32405444123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 32405444123.

It is not an unprimeable number, because it can be changed into a prime (32405444153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1246363223 + ... + 1246363248.

It is an arithmetic number, because the mean of its divisors is an integer number (8724542652).

Almost surely, 2^32405444123 is an apocalyptic number.

32405444123 is a deficient number, since it is larger than the sum of its proper divisors (2492726485).

32405444123 is a wasteful number, since it uses less digits than its factorization.

32405444123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2492726484.

The product of its (nonzero) digits is 46080, while the sum is 32.

Adding to 32405444123 its reverse (32144450423), we get a palindrome (64549894546).

The spelling of 32405444123 in words is "thirty-two billion, four hundred five million, four hundred forty-four thousand, one hundred twenty-three".