123112404441 has 32 divisors (see below), whose sum is σ = 196616219520. Its totient is φ = 75685275072.

The previous prime is 123112404403. The next prime is 123112404461. The reversal of 123112404441 is 144404211321.

It is a de Polignac number, because none of the positive numbers 2^k-123112404441 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (123112404461) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 174046 + ... + 525848.

It is an arithmetic number, because the mean of its divisors is an integer number (6144256860).

Almost surely, 2^123112404441 is an apocalyptic number.

It is an amenable number.

123112404441 is a deficient number, since it is larger than the sum of its proper divisors (73503815079).

123112404441 is a wasteful number, since it uses less digits than its factorization.

123112404441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352822 (or 352816 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 123112404441 its reverse (144404211321), we get a palindrome (267516615762).

The spelling of 123112404441 in words is "one hundred twenty-three billion, one hundred twelve million, four hundred four thousand, four hundred forty-one".