123543321712 has 20 divisors (see below), whose sum is σ = 239448186736. Its totient is φ = 61750241280.

The previous prime is 123543321701. The next prime is 123543321751. The reversal of 123543321712 is 217123345321.

It is a super-2 number, since 2×123543321712² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1291089 + ... + 1383472.

Almost surely, 2^123543321712 is an apocalyptic number.

It is an amenable number.

123543321712 is a deficient number, since it is larger than the sum of its proper divisors (115904865024).

123543321712 is a wasteful number, since it uses less digits than its factorization.

123543321712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2677456 (or 2677450 counting only the distinct ones).

The product of its digits is 30240, while the sum is 34.

The spelling of 123543321712 in words is "one hundred twenty-three billion, five hundred forty-three million, three hundred twenty-one thousand, seven hundred twelve".