123123321332011 has 16 divisors (see below), whose sum is σ = 165312431440128. Its totient is φ = 88560231127200.

The previous prime is 123123321331991. The next prime is 123123321332083. The reversal of 123123321332011 is 110233123321321.

It is not a de Polignac number, because 123123321332011 - 2⁵ = 123123321331979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123123321332911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61500159505 + ... + 61500161506.

It is an arithmetic number, because the mean of its divisors is an integer number (10332026965008).

Almost surely, 2^{123123321332011} is an apocalyptic number.

123123321332011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123123321332011 is a deficient number, since it is larger than the sum of its proper divisors (42189110108117).

123123321332011 is a wasteful number, since it uses less digits than its factorization.

123123321332011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123000321042.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 123123321332011 its reverse (110233123321321), we get a palindrome (233356444653332).

The spelling of 123123321332011 in words is "one hundred twenty-three trillion, one hundred twenty-three billion, three hundred twenty-one million, three hundred thirty-two thousand, eleven".