123030000040 has 64 divisors (see below), whose sum is σ = 292462560000. Its totient is φ = 46449780480.

The previous prime is 123030000007. The next prime is 123030000047. The reversal of 123030000040 is 40000030321.

It is not an unprimeable number, because it can be changed into a prime (123030000047) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 92715 + ... + 504634.

It is an arithmetic number, because the mean of its divisors is an integer number (4569727500).

Almost surely, 2^123030000040 is an apocalyptic number.

123030000040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123030000040 is an abundant number, since it is smaller than the sum of its proper divisors (169432559960).

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

123030000040 is a wasteful number, since it uses less digits than its factorization.

123030000040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 597650 (or 597646 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 123030000040 its reverse (40000030321), we get a palindrome (163030030361).

The spelling of 123030000040 in words is "one hundred twenty-three billion, thirty million, forty", and thus it is an aban number.