1021321244013 has 8 divisors (see below), whose sum is σ = 1556299038528. Its totient is φ = 583612139424.

The previous prime is 1021321243919. The next prime is 1021321244023. The reversal of 1021321244013 is 3104421231201.

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

It is not a de Polignac number, because 1021321244013 - 2¹⁴ = 1021321227629 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021321244023) 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, 24317172456 + ... + 24317172497.

It is an arithmetic number, because the mean of its divisors is an integer number (194537379816).

Almost surely, 2^{1021321244013} is an apocalyptic number.

It is an amenable number.

1021321244013 is a deficient number, since it is larger than the sum of its proper divisors (534977794515).

1021321244013 is an equidigital number, since it uses as much as digits as its factorization.

1021321244013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48634344963.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1021321244013 its reverse (3104421231201), we get a palindrome (4125742475214).

The spelling of 1021321244013 in words is "one trillion, twenty-one billion, three hundred twenty-one million, two hundred forty-four thousand, thirteen".