13215214451243 has 24 divisors (see below), whose sum is σ = 16182202014720. Its totient is φ = 10730948150160.

The previous prime is 13215214451239. The next prime is 13215214451293. The reversal of 13215214451243 is 34215441251231.

It is not a de Polignac number, because 13215214451243 - 2² = 13215214451239 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13215214451197 and 13215214451206.

It is not an unprimeable number, because it can be changed into a prime (13215214451293) 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 23 ways as a sum of consecutive naturals, for example, 66962330 + ... + 67159392.

It is an arithmetic number, because the mean of its divisors is an integer number (674258417280).

Almost surely, 2^{13215214451243} is an apocalyptic number.

13215214451243 is a deficient number, since it is larger than the sum of its proper divisors (2966987563477).

13215214451243 is a wasteful number, since it uses less digits than its factorization.

13215214451243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269127 (or 269120 counting only the distinct ones).

The product of its digits is 115200, while the sum is 38.

The spelling of 13215214451243 in words is "thirteen trillion, two hundred fifteen billion, two hundred fourteen million, four hundred fifty-one thousand, two hundred forty-three".