1321113401 has 8 divisors (see below), whose sum is σ = 1418529024. Its totient is φ = 1225887040.

The previous prime is 1321113373. The next prime is 1321113421. The reversal of 1321113401 is 1043111231.

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 1321113401 - 2¹⁴ = 1321097017 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321113401.

It is not an unprimeable number, because it can be changed into a prime (1321113421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 546065 + ... + 548478.

It is an arithmetic number, because the mean of its divisors is an integer number (177316128).

Almost surely, 2^1321113401 is an apocalyptic number.

It is an amenable number.

1321113401 is a deficient number, since it is larger than the sum of its proper divisors (97415623).

1321113401 is a wasteful number, since it uses less digits than its factorization.

1321113401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1094631.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1321113401 is about 36347.1236963807. The cubic root of 1321113401 is about 1097.2696475021.

Adding to 1321113401 its reverse (1043111231), we get a palindrome (2364224632).

The spelling of 1321113401 in words is "one billion, three hundred twenty-one million, one hundred thirteen thousand, four hundred one".