123140601432 has 128 divisors (see below), whose sum is σ = 348188198400. Its totient is φ = 40316904576.

The previous prime is 123140601391. The next prime is 123140601443. The reversal of 123140601432 is 234106041321.

It is a happy number.

123140601432 is a `hidden beast` number, since 1 + 2 + 3 + 14 + 0 + 601 + 43 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 123140601396 and 123140601405.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3081693 + ... + 3121395.

It is an arithmetic number, because the mean of its divisors is an integer number (2720220300).

Almost surely, 2^123140601432 is an apocalyptic number.

123140601432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123140601432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174094099200).

123140601432 is an abundant number, since it is smaller than the sum of its proper divisors (225047596968).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123140601432 is a wasteful number, since it uses less digits than its factorization.

123140601432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39974 (or 39964 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 123140601432 its reverse (234106041321), we get a palindrome (357246642753).

The spelling of 123140601432 in words is "one hundred twenty-three billion, one hundred forty million, six hundred one thousand, four hundred thirty-two".