1213505455335 has 32 divisors (see below), whose sum is σ = 1958393246400. Its totient is φ = 641624755200.

The previous prime is 1213505455333. The next prime is 1213505455361. The reversal of 1213505455335 is 5335545053121.

It is not a de Polignac number, because 1213505455335 - 2¹ = 1213505455333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213505455333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 643365 + ... + 1685505.

It is an arithmetic number, because the mean of its divisors is an integer number (61199788950).

Almost surely, 2^{1213505455335} is an apocalyptic number.

1213505455335 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1213505455335 is a deficient number, since it is larger than the sum of its proper divisors (744887791065).

1213505455335 is a wasteful number, since it uses less digits than its factorization.

1213505455335 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1042819.

The product of its (nonzero) digits is 675000, while the sum is 42.

The spelling of 1213505455335 in words is "one trillion, two hundred thirteen billion, five hundred five million, four hundred fifty-five thousand, three hundred thirty-five".