440140022014123 has 4 divisors (see below), whose sum is σ = 440140953611880. Its totient is φ = 440139090416368.

The previous prime is 440140022014111. The next prime is 440140022014159. The reversal of 440140022014123 is 321410220041044.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-440140022014123 is a prime.

It is a super-2 number, since 2×440140022014123² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 440140022014091 and 440140022014100.

It is not an unprimeable number, because it can be changed into a prime (440140022014163) 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, 465089833 + ... + 466035226.

It is an arithmetic number, because the mean of its divisors is an integer number (110035238402970).

Almost surely, 2^{440140022014123} is an apocalyptic number.

440140022014123 is a deficient number, since it is larger than the sum of its proper divisors (931597757).

440140022014123 is an equidigital number, since it uses as much as digits as its factorization.

440140022014123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 931597756.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 440140022014123 its reverse (321410220041044), we get a palindrome (761550242055167).

The spelling of 440140022014123 in words is "four hundred forty trillion, one hundred forty billion, twenty-two million, fourteen thousand, one hundred twenty-three".