1213444410455 has 8 divisors (see below), whose sum is σ = 1456860280752. Its totient is φ = 970270869568.

The previous prime is 1213444410397. The next prime is 1213444410481. The reversal of 1213444410455 is 5540144443121.

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

It is a cyclic number.

It is not a de Polignac number, because 1213444410455 - 2¹⁸ = 1213444148311 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, 60571334 + ... + 60591363.

It is an arithmetic number, because the mean of its divisors is an integer number (182107535094).

Almost surely, 2^{1213444410455} is an apocalyptic number.

1213444410455 is a deficient number, since it is larger than the sum of its proper divisors (243415870297).

1213444410455 is a wasteful number, since it uses less digits than its factorization.

1213444410455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121164705.

The product of its (nonzero) digits is 153600, while the sum is 38.

Adding to 1213444410455 its reverse (5540144443121), we get a palindrome (6753588853576).

The spelling of 1213444410455 in words is "one trillion, two hundred thirteen billion, four hundred forty-four million, four hundred ten thousand, four hundred fifty-five".