1223705240144 has 10 divisors (see below), whose sum is σ = 2370928902810. Its totient is φ = 611852620064.

The previous prime is 1223705240123. The next prime is 1223705240231. The reversal of 1223705240144 is 4410425073221.

It can be written as a sum of positive squares in only one way, i.e., 829170505744 + 394534734400 = 910588^2 + 628120^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38240788739 + ... + 38240788770.

It is an arithmetic number, because the mean of its divisors is an integer number (237092890281).

Almost surely, 2^{1223705240144} is an apocalyptic number.

It is an amenable number.

1223705240144 is a deficient number, since it is larger than the sum of its proper divisors (1147223662666).

1223705240144 is an equidigital number, since it uses as much as digits as its factorization.

1223705240144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76481577517 (or 76481577511 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 35.

The spelling of 1223705240144 in words is "one trillion, two hundred twenty-three billion, seven hundred five million, two hundred forty thousand, one hundred forty-four".