123511143234 has 32 divisors (see below), whose sum is σ = 260910982080. Its totient is φ = 38870390592.

The previous prime is 123511143227. The next prime is 123511143281. The reversal of 123511143234 is 432341115321.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 1815457 + ... + 1882260.

It is an arithmetic number, because the mean of its divisors is an integer number (8153468190).

Almost surely, 2^123511143234 is an apocalyptic number.

123511143234 is an abundant number, since it is smaller than the sum of its proper divisors (137399838846).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123511143234 is a wasteful number, since it uses less digits than its factorization.

123511143234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3698034.

The product of its digits is 8640, while the sum is 30.

Adding to 123511143234 its reverse (432341115321), we get a palindrome (555852258555).

The spelling of 123511143234 in words is "one hundred twenty-three billion, five hundred eleven million, one hundred forty-three thousand, two hundred thirty-four".