1328491111941 has 108 divisors (see below), whose sum is σ = 2368157107212. Its totient is φ = 715440273408.

The previous prime is 1328491111901. The next prime is 1328491111957. The reversal of 1328491111941 is 1491111948231.

1328491111941 is a `hidden beast` number, since 1 + 3 + 2 + 8 + 491 + 1 + 119 + 41 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 149792220900 + 1178698891041 = 387030^2 + 1085679^2 .

It is not a de Polignac number, because 1328491111941 - 2⁹ = 1328491111429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1328491111901) by changing a digit.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 30704175 + ... + 30747411.

Almost surely, 2^{1328491111941} is an apocalyptic number.

It is an amenable number.

1328491111941 is a deficient number, since it is larger than the sum of its proper divisors (1039665995271).

1328491111941 is a wasteful number, since it uses less digits than its factorization.

1328491111941 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43488 (or 43459 counting only the distinct ones).

The product of its digits is 62208, while the sum is 45.

The spelling of 1328491111941 in words is "one trillion, three hundred twenty-eight billion, four hundred ninety-one million, one hundred eleven thousand, nine hundred forty-one".