1611243423 has 12 divisors (see below), whose sum is σ = 2327757120. Its totient is φ = 1073975136.

The previous prime is 1611243421. The next prime is 1611243481. The reversal of 1611243423 is 3243421161.

It is a happy number.

1611243423 is a `hidden beast` number, since 1 + 611 + 2 + 4 + 3 + 42 + 3 = 666.

1611243423 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1611243423 - 2¹ = 1611243421 is a prime.

It is a super-2 number, since 2×1611243423² = 5192210736321513858, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1611243421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 56443 + ... + 80051.

It is an arithmetic number, because the mean of its divisors is an integer number (193979760).

Almost surely, 2^1611243423 is an apocalyptic number.

1611243423 is a deficient number, since it is larger than the sum of its proper divisors (716513697).

1611243423 is a wasteful number, since it uses less digits than its factorization.

1611243423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31198 (or 31195 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 1611243423 is about 40140.2967477820. The cubic root of 1611243423 is about 1172.3403669120.

Adding to 1611243423 its reverse (3243421161), we get a palindrome (4854664584).

The spelling of 1611243423 in words is "one billion, six hundred eleven million, two hundred forty-three thousand, four hundred twenty-three".