123041204111 has 4 divisors (see below), whose sum is σ = 140618518992. Its totient is φ = 105463889232.

The previous prime is 123041204063. The next prime is 123041204171. The reversal of 123041204111 is 111402140321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111402140321 = 3911 ⋅28484311.

It is a cyclic number.

It is not a de Polignac number, because 123041204111 - 2⁶ = 123041204047 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123041204171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8788657430 + ... + 8788657443.

It is an arithmetic number, because the mean of its divisors is an integer number (35154629748).

Almost surely, 2^123041204111 is an apocalyptic number.

123041204111 is a deficient number, since it is larger than the sum of its proper divisors (17577314881).

123041204111 is an equidigital number, since it uses as much as digits as its factorization.

123041204111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17577314880.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 123041204111 its reverse (111402140321), we get a palindrome (234443344432).

The spelling of 123041204111 in words is "one hundred twenty-three billion, forty-one million, two hundred four thousand, one hundred eleven".