123132100012123 has 16 divisors (see below), whose sum is σ = 123385587193440. Its totient is φ = 122878833949696.

The previous prime is 123132100012121. The next prime is 123132100012199. The reversal of 123132100012123 is 321210001231321.

It is a cyclic number.

It is not a de Polignac number, because 123132100012123 - 2¹ = 123132100012121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123132100012094 and 123132100012103.

It is not an unprimeable number, because it can be changed into a prime (123132100012121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18408144363 + ... + 18408151051.

It is an arithmetic number, because the mean of its divisors is an integer number (7711599199590).

Almost surely, 2^{123132100012123} is an apocalyptic number.

123132100012123 is a deficient number, since it is larger than the sum of its proper divisors (253487181317).

123132100012123 is an equidigital number, since it uses as much as digits as its factorization.

123132100012123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17966.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 123132100012123 its reverse (321210001231321), we get a palindrome (444342101243444).

The spelling of 123132100012123 in words is "one hundred twenty-three trillion, one hundred thirty-two billion, one hundred million, twelve thousand, one hundred twenty-three".