1243200424433 has 12 divisors (see below), whose sum is σ = 1374391855284. Its totient is φ = 1123649340000.

The previous prime is 1243200424391. The next prime is 1243200424457. The reversal of 1243200424433 is 3344240023421.

It can be written as a sum of positive squares in 2 ways, for example, as 1198724988769 + 44475435664 = 1094863^2 + 210892^2 .

It is not a de Polignac number, because 1243200424433 - 2¹² = 1243200420337 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1243200424433.

It is not an unprimeable number, because it can be changed into a prime (1243200424463) 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 11 ways as a sum of consecutive naturals, for example, 29673818 + ... + 29715683.

It is an arithmetic number, because the mean of its divisors is an integer number (114532654607).

Almost surely, 2^{1243200424433} is an apocalyptic number.

It is an amenable number.

1243200424433 is a deficient number, since it is larger than the sum of its proper divisors (131191430851).

1243200424433 is a wasteful number, since it uses less digits than its factorization.

1243200424433 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59389696 (or 59389685 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 32.

Adding to 1243200424433 its reverse (3344240023421), we get a palindrome (4587440447854).

The spelling of 1243200424433 in words is "one trillion, two hundred forty-three billion, two hundred million, four hundred twenty-four thousand, four hundred thirty-three".