1213444410125 has 32 divisors (see below), whose sum is σ = 1558668279168. Its totient is φ = 942589200000.

The previous prime is 1213444410121. The next prime is 1213444410127. The reversal of 1213444410125 is 5210144443121.

It is not a de Polignac number, because 1213444410125 - 2² = 1213444410121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1213444410091 and 1213444410100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213444410121) 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 31 ways as a sum of consecutive naturals, for example, 520310 + ... + 1642440.

It is an arithmetic number, because the mean of its divisors is an integer number (48708383724).

Almost surely, 2^{1213444410125} is an apocalyptic number.

It is an amenable number.

1213444410125 is a deficient number, since it is larger than the sum of its proper divisors (345223869043).

1213444410125 is a wasteful number, since it uses less digits than its factorization.

1213444410125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1122398 (or 1122388 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 32.

Adding to 1213444410125 its reverse (5210144443121), we get a palindrome (6423588853246).

The spelling of 1213444410125 in words is "one trillion, two hundred thirteen billion, four hundred forty-four million, four hundred ten thousand, one hundred twenty-five".