123501740427 has 48 divisors (see below), whose sum is σ = 192833088448. Its totient is φ = 75717089280.

The previous prime is 123501740389. The next prime is 123501740429. The reversal of 123501740427 is 724047105321.

123501740427 is a `hidden beast` number, since 1 + 235 + 0 + 17 + 404 + 2 + 7 = 666.

It is not a de Polignac number, because 123501740427 - 2⁶ = 123501740363 is a prime.

It is a super-2 number, since 2×123501740427² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123501740391 and 123501740400.

It is not an unprimeable number, because it can be changed into a prime (123501740429) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 48987927 + ... + 48990447.

Almost surely, 2^123501740427 is an apocalyptic number.

123501740427 is a deficient number, since it is larger than the sum of its proper divisors (69331348021).

123501740427 is a wasteful number, since it uses less digits than its factorization.

123501740427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3940 (or 3937 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 36.

Adding to 123501740427 its reverse (724047105321), we get a palindrome (847548845748).

The spelling of 123501740427 in words is "one hundred twenty-three billion, five hundred one million, seven hundred forty thousand, four hundred twenty-seven".