1242644662311 has 32 divisors (see below), whose sum is σ = 1831677399552. Its totient is φ = 744518597760.

The previous prime is 1242644662267. The next prime is 1242644662321. The reversal of 1242644662311 is 1132664462421.

It is not a de Polignac number, because 1242644662311 - 2⁷ = 1242644662183 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1242644662321) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 669760 + ... + 1712853.

It is an arithmetic number, because the mean of its divisors is an integer number (57239918736).

Almost surely, 2^{1242644662311} is an apocalyptic number.

1242644662311 is a deficient number, since it is larger than the sum of its proper divisors (589032737241).

1242644662311 is a wasteful number, since it uses less digits than its factorization.

1242644662311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2382983.

The product of its digits is 331776, while the sum is 42.

The spelling of 1242644662311 in words is "one trillion, two hundred forty-two billion, six hundred forty-four million, six hundred sixty-two thousand, three hundred eleven".