12401041123 has 4 divisors (see below), whose sum is σ = 12940216848. Its totient is φ = 11861865400.

The previous prime is 12401041117. The next prime is 12401041127. The reversal of 12401041123 is 32114010421.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32114010421 = 7177 ⋅4474573.

It is a cyclic number.

It is not a de Polignac number, because 12401041123 - 2²¹ = 12398943971 is a prime.

It is a super-2 number, since 2×12401041123² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12401041123.

It is not an unprimeable number, because it can be changed into a prime (12401041127) 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 3 ways as a sum of consecutive naturals, for example, 269587828 + ... + 269587873.

It is an arithmetic number, because the mean of its divisors is an integer number (3235054212).

Almost surely, 2^12401041123 is an apocalyptic number.

12401041123 is a deficient number, since it is larger than the sum of its proper divisors (539175725).

12401041123 is an equidigital number, since it uses as much as digits as its factorization.

12401041123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 539175724.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12401041123 its reverse (32114010421), we get a palindrome (44515051544).

The spelling of 12401041123 in words is "twelve billion, four hundred one million, forty-one thousand, one hundred twenty-three".