1321054013 has 8 divisors (see below), whose sum is σ = 1381518528. Its totient is φ = 1260841824.

The previous prime is 1321053977. The next prime is 1321054027. The reversal of 1321054013 is 3104501231.

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 1321054013 - 2⁸ = 1321053757 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 (1321054913) 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, 52331 + ... + 73352.

It is an arithmetic number, because the mean of its divisors is an integer number (172689816).

Almost surely, 2^1321054013 is an apocalyptic number.

It is an amenable number.

1321054013 is a deficient number, since it is larger than the sum of its proper divisors (60464515).

1321054013 is a wasteful number, since it uses less digits than its factorization.

1321054013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126163.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1321054013 is about 36346.3067312210. The cubic root of 1321054013 is about 1097.2532054045.

Adding to 1321054013 its reverse (3104501231), we get a palindrome (4425555244).

The spelling of 1321054013 in words is "one billion, three hundred twenty-one million, fifty-four thousand, thirteen".