1245542243204 has 12 divisors (see below), whose sum is σ = 2491084486464. Its totient is φ = 533803818504.

The previous prime is 1245542243149. The next prime is 1245542243237. The reversal of 1245542243204 is 4023422455421.

1245542243204 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22241825744 + ... + 22241825799.

It is an arithmetic number, because the mean of its divisors is an integer number (207590373872).

Almost surely, 2^{1245542243204} is an apocalyptic number.

1245542243204 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1245542243204 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

1245542243204 is a wasteful number, since it uses less digits than its factorization.

1245542243204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44483651554 (or 44483651552 counting only the distinct ones).

The product of its (nonzero) digits is 307200, while the sum is 38.

Adding to 1245542243204 its reverse (4023422455421), we get a palindrome (5268964698625).

The spelling of 1245542243204 in words is "one trillion, two hundred forty-five billion, five hundred forty-two million, two hundred forty-three thousand, two hundred four".