123044230502040 has 32 divisors (see below), whose sum is σ = 369132691506480. Its totient is φ = 32811794800512.

The previous prime is 123044230502033. The next prime is 123044230502047. The reversal of 123044230502040 is 40205032440321.

It is an interprime number because it is at equal distance from previous prime (123044230502033) and next prime (123044230502047).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 123044230501989 and 123044230502007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123044230502047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 512684293639 + ... + 512684293878.

Almost surely, 2^{123044230502040} is an apocalyptic number.

123044230502040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123044230502040 is an abundant number, since it is smaller than the sum of its proper divisors (246088461004440).

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

123044230502040 is a wasteful number, since it uses less digits than its factorization.

123044230502040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1025368587531 (or 1025368587527 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 30.

Adding to 123044230502040 its reverse (40205032440321), we get a palindrome (163249262942361).

The spelling of 123044230502040 in words is "one hundred twenty-three trillion, forty-four billion, two hundred thirty million, five hundred two thousand, forty".