1242442352455 has 8 divisors (see below), whose sum is σ = 1490985657504. Its totient is φ = 993917325600.

The previous prime is 1242442352377. The next prime is 1242442352483. The reversal of 1242442352455 is 5542532442421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1242442352455 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4419556 + ... + 4692265.

It is an arithmetic number, because the mean of its divisors is an integer number (186373207188).

Almost surely, 2^{1242442352455} is an apocalyptic number.

1242442352455 is a deficient number, since it is larger than the sum of its proper divisors (248543305049).

1242442352455 is an equidigital number, since it uses as much as digits as its factorization.

1242442352455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9139097.

The product of its digits is 1536000, while the sum is 43.

Adding to 1242442352455 its reverse (5542532442421), we get a palindrome (6784974794876).

The spelling of 1242442352455 in words is "one trillion, two hundred forty-two billion, four hundred forty-two million, three hundred fifty-two thousand, four hundred fifty-five".