13034220021 has 6 divisors (see below), whose sum is σ = 18827206710. Its totient is φ = 8689480008.

The previous prime is 13034219971. The next prime is 13034220113. The reversal of 13034220021 is 12002243031.

It can be written as a sum of positive squares in only one way, i.e., 13022004996 + 12215025 = 114114^2 + 3495^2 .

It is not a de Polignac number, because 13034220021 - 2¹⁰ = 13034218997 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13034219976 and 13034220003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13034220821) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 724123326 + ... + 724123343.

It is an arithmetic number, because the mean of its divisors is an integer number (3137867785).

Almost surely, 2^13034220021 is an apocalyptic number.

It is an amenable number.

13034220021 is a deficient number, since it is larger than the sum of its proper divisors (5792986689).

13034220021 is a wasteful number, since it uses less digits than its factorization.

13034220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1448246675 (or 1448246672 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 13034220021 its reverse (12002243031), we get a palindrome (25036463052).

The spelling of 13034220021 in words is "thirteen billion, thirty-four million, two hundred twenty thousand, twenty-one".