1321201041 has 8 divisors (see below), whose sum is σ = 1762315200. Its totient is φ = 880443792.

The previous prime is 1321201039. The next prime is 1321201061. The reversal of 1321201041 is 1401021231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1321201041 - 2¹ = 1321201039 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1321201041.

It is not an unprimeable number, because it can be changed into a prime (1321201061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80466 + ... + 95483.

It is an arithmetic number, because the mean of its divisors is an integer number (220289400).

Almost surely, 2^1321201041 is an apocalyptic number.

It is an amenable number.

1321201041 is a deficient number, since it is larger than the sum of its proper divisors (441114159).

1321201041 is a wasteful number, since it uses less digits than its factorization.

1321201041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178455.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1321201041 is about 36348.3292738470. The cubic root of 1321201041 is about 1097.2939105178.

Adding to 1321201041 its reverse (1401021231), we get a palindrome (2722222272).

The spelling of 1321201041 in words is "one billion, three hundred twenty-one million, two hundred one thousand, forty-one".