1242055254005 has 24 divisors (see below), whose sum is σ = 1585441966560. Its totient is φ = 933928254720.

The previous prime is 1242055253987. The next prime is 1242055254007. The reversal of 1242055254005 is 5004525502421.

It is not a de Polignac number, because 1242055254005 - 2⁸ = 1242055253749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242055254007) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 486290 + ... + 1649420.

It is an arithmetic number, because the mean of its divisors is an integer number (66060081940).

Almost surely, 2^{1242055254005} is an apocalyptic number.

It is an amenable number.

1242055254005 is a deficient number, since it is larger than the sum of its proper divisors (343386712555).

1242055254005 is a wasteful number, since it uses less digits than its factorization.

1242055254005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1163909 (or 1163892 counting only the distinct ones).

The product of its (nonzero) digits is 80000, while the sum is 35.

The spelling of 1242055254005 in words is "one trillion, two hundred forty-two billion, fifty-five million, two hundred fifty-four thousand, five".