1321201141 has 8 divisors (see below), whose sum is σ = 1424564064. Its totient is φ = 1218085680.

The previous prime is 1321201139. The next prime is 1321201153. The reversal of 1321201141 is 1411021231.

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

It is a cyclic number.

It is not a de Polignac number, because 1321201141 - 2¹ = 1321201139 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321201171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50695 + ... + 72196.

It is an arithmetic number, because the mean of its divisors is an integer number (178070508).

Almost surely, 2^1321201141 is an apocalyptic number.

It is an amenable number.

1321201141 is a deficient number, since it is larger than the sum of its proper divisors (103362923).

1321201141 is a wasteful number, since it uses less digits than its factorization.

1321201141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123731.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1321201141 is about 36348.3306494260. The cubic root of 1321201141 is about 1097.2939382020.

Adding to 1321201141 its reverse (1411021231), we get a palindrome (2732222372).

The spelling of 1321201141 in words is "one billion, three hundred twenty-one million, two hundred one thousand, one hundred forty-one".