123040241028 has 72 divisors (see below), whose sum is σ = 330372529760. Its totient is φ = 39599128800.

The previous prime is 123040241017. The next prime is 123040241033. The reversal of 123040241028 is 820142040321.

123040241028 is a `hidden beast` number, since 1 + 230 + 402 + 4 + 1 + 0 + 28 = 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 = 123040240992 and 123040241010.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 586498 + ... + 768153.

Almost surely, 2^123040241028 is an apocalyptic number.

123040241028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

123040241028 is an abundant number, since it is smaller than the sum of its proper divisors (207332288732).

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

123040241028 is a wasteful number, since it uses less digits than its factorization.

123040241028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1354722 (or 1354685 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 123040241028 its reverse (820142040321), we get a palindrome (943182281349).

The spelling of 123040241028 in words is "one hundred twenty-three billion, forty million, two hundred forty-one thousand, twenty-eight".