123111300132443 has 24 divisors (see below), whose sum is σ = 145351974480912. Its totient is φ = 103946561699904.

The previous prime is 123111300132439. The next prime is 123111300132449. The reversal of 123111300132443 is 344231003111321.

It is not a de Polignac number, because 123111300132443 - 2² = 123111300132439 is a prime.

It is a super-2 number, since 2×123111300132443² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123111300132449) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 147966905 + ... + 148796597.

It is an arithmetic number, because the mean of its divisors is an integer number (6056332270038).

Almost surely, 2^{123111300132443} is an apocalyptic number.

123111300132443 is a deficient number, since it is larger than the sum of its proper divisors (22240674348469).

123111300132443 is an equidigital number, since it uses as much as digits as its factorization.

123111300132443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 874971 (or 874964 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 29.

Adding to 123111300132443 its reverse (344231003111321), we get a palindrome (467342303243764).

The spelling of 123111300132443 in words is "one hundred twenty-three trillion, one hundred eleven billion, three hundred million, one hundred thirty-two thousand, four hundred forty-three".