1204243131432 has 128 divisors (see below), whose sum is σ = 3301024204800. Its totient is φ = 363067660800.

The previous prime is 1204243131431. The next prime is 1204243131439. The reversal of 1204243131432 is 2341313424021.

It is a super-2 number, since 2×1204243131432² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1204243131432.

It is not an unprimeable number, because it can be changed into a prime (1204243131431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52859628 + ... + 52882404.

It is an arithmetic number, because the mean of its divisors is an integer number (25789251600).

Almost surely, 2^{1204243131432} is an apocalyptic number.

1204243131432 is a gapful number since it is divisible by the number (12) 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 1204243131432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1650512102400).

1204243131432 is an abundant number, since it is smaller than the sum of its proper divisors (2096781073368).

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

1204243131432 is a wasteful number, since it uses less digits than its factorization.

1204243131432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23807 (or 23803 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 1204243131432 its reverse (2341313424021), we get a palindrome (3545556555453).

The spelling of 1204243131432 in words is "one trillion, two hundred four billion, two hundred forty-three million, one hundred thirty-one thousand, four hundred thirty-two".