1091303728401 has 16 divisors (see below), whose sum is σ = 1463925180096. Its totient is φ = 723111592896.

The previous prime is 1091303728381. The next prime is 1091303728429. The reversal of 1091303728401 is 1048273031901.

1091303728401 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1091303728401 - 2⁹ = 1091303727889 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1091303728401.

It is not an unprimeable number, because it can be changed into a prime (1091303728451) 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, 1408251 + ... + 2041023.

It is an arithmetic number, because the mean of its divisors is an integer number (91495323756).

Almost surely, 2^{1091303728401} is an apocalyptic number.

It is an amenable number.

1091303728401 is a deficient number, since it is larger than the sum of its proper divisors (372621451695).

1091303728401 is a wasteful number, since it uses less digits than its factorization.

1091303728401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636272.

The product of its (nonzero) digits is 36288, while the sum is 39.

The spelling of 1091303728401 in words is "one trillion, ninety-one billion, three hundred three million, seven hundred twenty-eight thousand, four hundred one".