123130404443 has 4 divisors (see below), whose sum is σ = 123132400560. Its totient is φ = 123128408328.

The previous prime is 123130404427. The next prime is 123130404511. The reversal of 123130404443 is 344404031321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123130404443 - 2⁴ = 123130404427 is a prime.

It is a super-2 number, since 2×123130404443² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123130409443) 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, 902480 + ... + 1029917.

It is an arithmetic number, because the mean of its divisors is an integer number (30783100140).

Almost surely, 2^123130404443 is an apocalyptic number.

123130404443 is a deficient number, since it is larger than the sum of its proper divisors (1996117).

123130404443 is an equidigital number, since it uses as much as digits as its factorization.

123130404443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1996116.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 123130404443 its reverse (344404031321), we get a palindrome (467534435764).

The spelling of 123130404443 in words is "one hundred twenty-three billion, one hundred thirty million, four hundred four thousand, four hundred forty-three".