123422241040 has 80 divisors (see below), whose sum is σ = 328253847552. Its totient is φ = 42277059072.

The previous prime is 123422240959. The next prime is 123422241043. The reversal of 123422241040 is 40142224321.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 123422240996 and 123422241014.

It is not an unprimeable number, because it can be changed into a prime (123422241043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 507342 + ... + 710098.

Almost surely, 2^123422241040 is an apocalyptic number.

123422241040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123422241040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (164126923776).

123422241040 is an abundant number, since it is smaller than the sum of its proper divisors (204831606512).

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

123422241040 is a wasteful number, since it uses less digits than its factorization.

123422241040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 203864 (or 203858 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 123422241040 its reverse (40142224321), we get a palindrome (163564465361).

The spelling of 123422241040 in words is "one hundred twenty-three billion, four hundred twenty-two million, two hundred forty-one thousand, forty".