1341489281721 has 16 divisors (see below), whose sum is σ = 1833449484288. Its totient is φ = 872068064400.

The previous prime is 1341489281711. The next prime is 1341489281747. The reversal of 1341489281721 is 1271829841431.

It is not a de Polignac number, because 1341489281721 - 2³¹ = 1339341798073 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1341489281711) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17515495 + ... + 17591916.

It is an arithmetic number, because the mean of its divisors is an integer number (114590592768).

Almost surely, 2^{1341489281721} is an apocalyptic number.

It is an amenable number.

1341489281721 is a deficient number, since it is larger than the sum of its proper divisors (491960202567).

1341489281721 is a wasteful number, since it uses less digits than its factorization.

1341489281721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35107732.

The product of its digits is 774144, while the sum is 51.

The spelling of 1341489281721 in words is "one trillion, three hundred forty-one billion, four hundred eighty-nine million, two hundred eighty-one thousand, seven hundred twenty-one".