1213315055453 has 8 divisors (see below), whose sum is σ = 1260413856576. Its totient is φ = 1167049861600.

The previous prime is 1213315055441. The next prime is 1213315055473. The reversal of 1213315055453 is 3545505133121.

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 1213315055453 - 2¹⁶ = 1213314989917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213315055473) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 208398851 + ... + 208404672.

It is an arithmetic number, because the mean of its divisors is an integer number (157551732072).

Almost surely, 2^{1213315055453} is an apocalyptic number.

It is an amenable number.

1213315055453 is a deficient number, since it is larger than the sum of its proper divisors (47098801123).

1213315055453 is an equidigital number, since it uses as much as digits as its factorization.

1213315055453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416803635.

The product of its (nonzero) digits is 135000, while the sum is 38.

The spelling of 1213315055453 in words is "one trillion, two hundred thirteen billion, three hundred fifteen million, fifty-five thousand, four hundred fifty-three".