123531123411 has 8 divisors (see below), whose sum is σ = 183009071760. Its totient is φ = 82354082256.

The previous prime is 123531123409. The next prime is 123531123449. The reversal of 123531123411 is 114321135321.

123531123411 is a `hidden beast` number, since 1 + 2 + 3 + 5 + 311 + 2 + 341 + 1 = 666.

It is not a de Polignac number, because 123531123411 - 2¹ = 123531123409 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 4575226793 = 123531123411 / (1 + 2 + 3 + 5 + 3 + 1 + 1 + 2 + 3 + 4 + 1 + 1).

It is not an unprimeable number, because it can be changed into a prime (123531123451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2287613370 + ... + 2287613423.

It is an arithmetic number, because the mean of its divisors is an integer number (22876133970).

Almost surely, 2^123531123411 is an apocalyptic number.

123531123411 is a deficient number, since it is larger than the sum of its proper divisors (59477948349).

123531123411 is an equidigital number, since it uses as much as digits as its factorization.

123531123411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4575226802 (or 4575226796 counting only the distinct ones).

The product of its digits is 2160, while the sum is 27.

Adding to 123531123411 its reverse (114321135321), we get a palindrome (237852258732).

The spelling of 123531123411 in words is "one hundred twenty-three billion, five hundred thirty-one million, one hundred twenty-three thousand, four hundred eleven".