13001033021 has 4 divisors (see below), whose sum is σ = 13039612092. Its totient is φ = 12962453952.

The previous prime is 13001033009. The next prime is 13001033041. The reversal of 13001033021 is 12033010031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6144364996 + 6856668025 = 78386^2 + 82805^2 .

It is a cyclic number.

It is not a de Polignac number, because 13001033021 - 2³⁰ = 11927291197 is a prime.

It is a super-2 number, since 2×13001033021² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13001032987 and 13001033005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13001033041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19289030 + ... + 19289703.

It is an arithmetic number, because the mean of its divisors is an integer number (3259903023).

Almost surely, 2^13001033021 is an apocalyptic number.

It is an amenable number.

13001033021 is a deficient number, since it is larger than the sum of its proper divisors (38579071).

13001033021 is an equidigital number, since it uses as much as digits as its factorization.

13001033021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38579070.

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 13001033021 its reverse (12033010031), we get a palindrome (25034043052).

The spelling of 13001033021 in words is "thirteen billion, one million, thirty-three thousand, twenty-one".