440123142331011 has 4 divisors (see below), whose sum is σ = 586830856441352. Its totient is φ = 293415428220672.

The previous prime is 440123142331009. The next prime is 440123142331043. The reversal of 440123142331011 is 110133241321044.

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

It is not a de Polignac number, because 440123142331011 - 2¹ = 440123142331009 is a prime.

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 440123142331011.

It is not an unprimeable number, because it can be changed into a prime (440123142331051) 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, 73353857055166 + ... + 73353857055171.

It is an arithmetic number, because the mean of its divisors is an integer number (146707714110338).

Almost surely, 2^{440123142331011} is an apocalyptic number.

440123142331011 is a deficient number, since it is larger than the sum of its proper divisors (146707714110341).

440123142331011 is a wasteful number, since it uses less digits than its factorization.

440123142331011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146707714110340.

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 440123142331011 its reverse (110133241321044), we get a palindrome (550256383652055).

The spelling of 440123142331011 in words is "four hundred forty trillion, one hundred twenty-three billion, one hundred forty-two million, three hundred thirty-one thousand, eleven".