123271417443 has 4 divisors (see below), whose sum is σ = 164361889928. Its totient is φ = 82180944960.

The previous prime is 123271417439. The next prime is 123271417487. The reversal of 123271417443 is 344714172321.

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

It is not a de Polignac number, because 123271417443 - 2² = 123271417439 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123271917443) 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, 20545236238 + ... + 20545236243.

It is an arithmetic number, because the mean of its divisors is an integer number (41090472482).

Almost surely, 2^123271417443 is an apocalyptic number.

123271417443 is a deficient number, since it is larger than the sum of its proper divisors (41090472485).

123271417443 is an equidigital number, since it uses as much as digits as its factorization.

123271417443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41090472484.

The product of its digits is 112896, while the sum is 39.

Adding to 123271417443 its reverse (344714172321), we get a palindrome (467985589764).

The spelling of 123271417443 in words is "one hundred twenty-three billion, two hundred seventy-one million, four hundred seventeen thousand, four hundred forty-three".