1232404431040 has 112 divisors (see below), whose sum is σ = 3005538141312. Its totient is φ = 481195524096.

The previous prime is 1232404430941. The next prime is 1232404431043. The reversal of 1232404431040 is 401344042321.

It is a super-2 number, since 2×1232404431040² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1232404431043) 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, 1993977 + ... + 2537863.

It is an arithmetic number, because the mean of its divisors is an integer number (26835161976).

Almost surely, 2^{1232404431040} is an apocalyptic number.

1232404431040 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 1232404431040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1502769070656).

1232404431040 is an abundant number, since it is smaller than the sum of its proper divisors (1773133710272).

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

1232404431040 is an equidigital number, since it uses as much as digits as its factorization.

1232404431040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 544074 (or 544064 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 1232404431040 its reverse (401344042321), we get a palindrome (1633748473361).

The spelling of 1232404431040 in words is "one trillion, two hundred thirty-two billion, four hundred four million, four hundred thirty-one thousand, forty".