123411231 has 12 divisors (see below), whose sum is σ = 178381840. Its totient is φ = 82218240.

The previous prime is 123411229. The next prime is 123411259. The reversal of 123411231 is 132114321.

123411231 is a `hidden beast` number, since 1 + 23 + 411 + 231 = 666.

It is not a de Polignac number, because 123411231 - 2¹ = 123411229 is a prime.

It is a super-2 number, since 2×123411231² = 30460663873870722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123411131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12735 + ... + 20223.

Almost surely, 2^123411231 is an apocalyptic number.

123411231 is a deficient number, since it is larger than the sum of its proper divisors (54970609).

123411231 is a wasteful number, since it uses less digits than its factorization.

123411231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9326 (or 9323 counting only the distinct ones).

The product of its digits is 144, while the sum is 18.

The square root of 123411231 is about 11109.0607613785. The cubic root of 123411231 is about 497.8726025310.

Adding to 123411231 its reverse (132114321), we get a palindrome (255525552).

The spelling of 123411231 in words is "one hundred twenty-three million, four hundred eleven thousand, two hundred thirty-one".