113002021321 has 4 divisors (see below), whose sum is σ = 129145167232. Its totient is φ = 96858875412.

The previous prime is 113002021261. The next prime is 113002021339. The reversal of 113002021321 is 123120200311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123120200311 = 487 ⋅252813553.

It is a cyclic number.

It is not a de Polignac number, because 113002021321 - 2¹⁹ = 113001497033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113002021295 and 113002021304.

It is not an unprimeable number, because it can be changed into a prime (113002021381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8071572945 + ... + 8071572958.

It is an arithmetic number, because the mean of its divisors is an integer number (32286291808).

Almost surely, 2^113002021321 is an apocalyptic number.

It is an amenable number.

113002021321 is a deficient number, since it is larger than the sum of its proper divisors (16143145911).

113002021321 is an equidigital number, since it uses as much as digits as its factorization.

113002021321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16143145910.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 113002021321 its reverse (123120200311), we get a palindrome (236122221632).

The spelling of 113002021321 in words is "one hundred thirteen billion, two million, twenty-one thousand, three hundred twenty-one".