1242400311344 has 10 divisors (see below), whose sum is σ = 2407150603260. Its totient is φ = 621200155664.

The previous prime is 1242400311323. The next prime is 1242400311407. The reversal of 1242400311344 is 4431130042421.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38825009714 + ... + 38825009745.

It is an arithmetic number, because the mean of its divisors is an integer number (240715060326).

Almost surely, 2^{1242400311344} is an apocalyptic number.

It is an amenable number.

1242400311344 is a deficient number, since it is larger than the sum of its proper divisors (1164750291916).

1242400311344 is an equidigital number, since it uses as much as digits as its factorization.

1242400311344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77650019467 (or 77650019461 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 1242400311344 its reverse (4431130042421), we get a palindrome (5673530353765).

The spelling of 1242400311344 in words is "one trillion, two hundred forty-two billion, four hundred million, three hundred eleven thousand, three hundred forty-four".