1242032152105 has 8 divisors (see below), whose sum is σ = 1512683934912. Its totient is φ = 978795486768.

The previous prime is 1242032152087. The next prime is 1242032152121. The reversal of 1242032152105 is 5012512302421.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1242032152105 - 2⁷ = 1242032151977 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1853778997 + ... + 1853779666.

It is an arithmetic number, because the mean of its divisors is an integer number (189085491864).

Almost surely, 2^{1242032152105} is an apocalyptic number.

It is an amenable number.

1242032152105 is a deficient number, since it is larger than the sum of its proper divisors (270651782807).

1242032152105 is an equidigital number, since it uses as much as digits as its factorization.

1242032152105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3707558735.

The product of its (nonzero) digits is 4800, while the sum is 28.

Adding to 1242032152105 its reverse (5012512302421), we get a palindrome (6254544454526).

The spelling of 1242032152105 in words is "one trillion, two hundred forty-two billion, thirty-two million, one hundred fifty-two thousand, one hundred five".