123034022040040 has 64 divisors (see below), whose sum is σ = 301032368773200. Its totient is φ = 45066834137088.

The previous prime is 123034022039993. The next prime is 123034022040053. The reversal of 123034022040040 is 40040220430321.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 110184363771876 + 12849658268164 = 10496874^2 + 3584642^2 .

It is a junction number, because it is equal to n+sod(n) for n = 123034022039987 and 123034022040014.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2445007075 + ... + 2445057394.

Almost surely, 2^{123034022040040} is an apocalyptic number.

123034022040040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123034022040040 is an abundant number, since it is smaller than the sum of its proper divisors (177998346733160).

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

123034022040040 is a wasteful number, since it uses less digits than its factorization.

123034022040040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4890064534 (or 4890064530 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 123034022040040 its reverse (40040220430321), we get a palindrome (163074242470361).

The spelling of 123034022040040 in words is "one hundred twenty-three trillion, thirty-four billion, twenty-two million, forty thousand, forty".