1242513035452 has 12 divisors (see below), whose sum is σ = 2341659182296. Its totient is φ = 573467554800.

The previous prime is 1242513035399. The next prime is 1242513035473. The reversal of 1242513035452 is 2545303152421.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 11947240674 + ... + 11947240777.

Almost surely, 2^{1242513035452} is an apocalyptic number.

It is an amenable number.

1242513035452 is a deficient number, since it is larger than the sum of its proper divisors (1099146146844).

1242513035452 is a wasteful number, since it uses less digits than its factorization.

1242513035452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23894481468 (or 23894481466 counting only the distinct ones).

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 1242513035452 its reverse (2545303152421), we get a palindrome (3787816187873).

The spelling of 1242513035452 in words is "one trillion, two hundred forty-two billion, five hundred thirteen million, thirty-five thousand, four hundred fifty-two".