1213444253255 has 8 divisors (see below), whose sum is σ = 1568143342752. Its totient is φ = 896081910048.

The previous prime is 1213444253227. The next prime is 1213444253297. The reversal of 1213444253255 is 5523524443121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-1213444253255 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9334186499 + ... + 9334186628.

It is an arithmetic number, because the mean of its divisors is an integer number (196017917844).

Almost surely, 2^{1213444253255} is an apocalyptic number.

1213444253255 is a deficient number, since it is larger than the sum of its proper divisors (354699089497).

1213444253255 is a wasteful number, since it uses less digits than its factorization.

1213444253255 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18668373145.

The product of its digits is 576000, while the sum is 41.

Adding to 1213444253255 its reverse (5523524443121), we get a palindrome (6736968696376).

The spelling of 1213444253255 in words is "one trillion, two hundred thirteen billion, four hundred forty-four million, two hundred fifty-three thousand, two hundred fifty-five".