1243052401504 has 12 divisors (see below), whose sum is σ = 2447259415524. Its totient is φ = 621526200736.

The previous prime is 1243052401421. The next prime is 1243052401543. The reversal of 1243052401504 is 4051042503421.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 19422693742 + ... + 19422693805.

It is an arithmetic number, because the mean of its divisors is an integer number (203938284627).

Almost surely, 2^{1243052401504} is an apocalyptic number.

It is an amenable number.

1243052401504 is a deficient number, since it is larger than the sum of its proper divisors (1204207014020).

1243052401504 is an equidigital number, since it uses as much as digits as its factorization.

1243052401504 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38845387557 (or 38845387549 counting only the distinct ones).

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 1243052401504 its reverse (4051042503421), we get a palindrome (5294094904925).

The spelling of 1243052401504 in words is "one trillion, two hundred forty-three billion, fifty-two million, four hundred one thousand, five hundred four".