1218880032841 has 9 divisors (see below), whose sum is σ = 1221927011949. Its totient is φ = 1215840641004.

The previous prime is 1218880032829. The next prime is 1218880032859. The reversal of 1218880032841 is 1482300888121.

The square root of 1218880032841 is 1104029.

It is a perfect power (a square), and thus also a powerful number.

It is not a de Polignac number, because 1218880032841 - 2¹⁵ = 1218880000073 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1218880032791 and 1218880032800.

It is not an unprimeable number, because it can be changed into a prime (1218880032241) 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 8 ways as a sum of consecutive naturals, for example, 537660990 + ... + 537663256.

Almost surely, 2^{1218880032841} is an apocalyptic number.

1218880032841 is the 1104029-th square number.

1218880032841 is the 552015-th centered octagonal number.

It is an amenable number.

1218880032841 is a deficient number, since it is larger than the sum of its proper divisors (3046979108).

1218880032841 is an frugal number, since it uses more digits than its factorization.

1218880032841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5508 (or 2754 counting only the distinct ones).

The product of its (nonzero) digits is 196608, while the sum is 46.

The spelling of 1218880032841 in words is "one trillion, two hundred eighteen billion, eight hundred eighty million, thirty-two thousand, eight hundred forty-one".