123543502412 has 48 divisors (see below), whose sum is σ = 240079472640. Its totient is φ = 55152292800.

The previous prime is 123543502391. The next prime is 123543502441. The reversal of 123543502412 is 214205345321.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2799962 + ... + 2843742.

It is an arithmetic number, because the mean of its divisors is an integer number (5001655680).

Almost surely, 2^123543502412 is an apocalyptic number.

It is an amenable number.

123543502412 is a deficient number, since it is larger than the sum of its proper divisors (116535970228).

123543502412 is a wasteful number, since it uses less digits than its factorization.

123543502412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44942 (or 44940 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 123543502412 its reverse (214205345321), we get a palindrome (337748847733).

The spelling of 123543502412 in words is "one hundred twenty-three billion, five hundred forty-three million, five hundred two thousand, four hundred twelve".