4431144123 has 64 divisors (see below), whose sum is σ = 7840931840. Its totient is φ = 2450139840.

The previous prime is 4431144103. The next prime is 4431144131. The reversal of 4431144123 is 3214411344.

It is not a de Polignac number, because 4431144123 - 2¹⁰ = 4431143099 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4431144103) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 469911 + ... + 479247.

It is an arithmetic number, because the mean of its divisors is an integer number (122514560).

Almost surely, 2^4431144123 is an apocalyptic number.

4431144123 is a deficient number, since it is larger than the sum of its proper divisors (3409787717).

4431144123 is an frugal number, since it uses more digits than its factorization.

4431144123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9396 (or 9378 counting only the distinct ones).

The product of its digits is 4608, while the sum is 27.

The square root of 4431144123 is about 66566.8395148816. The cubic root of 4431144123 is about 1642.4996734846.

Adding to 4431144123 its reverse (3214411344), we get a palindrome (7645555467).

The spelling of 4431144123 in words is "four billion, four hundred thirty-one million, one hundred forty-four thousand, one hundred twenty-three".