123433231011 has 16 divisors (see below), whose sum is σ = 167700256416. Its totient is φ = 80727835136.

The previous prime is 123433231007. The next prime is 123433231039. The reversal of 123433231011 is 110132334321.

It is a cyclic number.

It is not a de Polignac number, because 123433231011 - 2² = 123433231007 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123433231001) 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 15 ways as a sum of consecutive naturals, for example, 1748251 + ... + 1817483.

It is an arithmetic number, because the mean of its divisors is an integer number (10481266026).

Almost surely, 2^123433231011 is an apocalyptic number.

123433231011 is a deficient number, since it is larger than the sum of its proper divisors (44267025405).

123433231011 is a wasteful number, since it uses less digits than its factorization.

123433231011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80502.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 123433231011 its reverse (110132334321), we get a palindrome (233565565332).

The spelling of 123433231011 in words is "one hundred twenty-three billion, four hundred thirty-three million, two hundred thirty-one thousand, eleven".