423123423111 has 32 divisors (see below), whose sum is σ = 648486963200. Its totient is φ = 272385270720.

The previous prime is 423123423071. The next prime is 423123423157. The reversal of 423123423111 is 111324321324.

423123423111 is a `hidden beast` number, since 4 + 2 + 3 + 1 + 2 + 342 + 311 + 1 = 666.

It is not a de Polignac number, because 423123423111 - 2¹⁰ = 423123422087 is a prime.

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

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423123423211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 170581 + ... + 935598.

It is an arithmetic number, because the mean of its divisors is an integer number (20265217600).

Almost surely, 2^423123423111 is an apocalyptic number.

423123423111 is a deficient number, since it is larger than the sum of its proper divisors (225363540089).

423123423111 is a wasteful number, since it uses less digits than its factorization.

423123423111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1106676 (or 1106670 counting only the distinct ones).

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

Adding to 423123423111 its reverse (111324321324), we get a palindrome (534447744435).

The spelling of 423123423111 in words is "four hundred twenty-three billion, one hundred twenty-three million, four hundred twenty-three thousand, one hundred eleven".