13130422021 has 4 divisors (see below), whose sum is σ = 13131301792. Its totient is φ = 13129542252.

The previous prime is 13130422013. The next prime is 13130422037. The reversal of 13130422021 is 12022403131.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 13130422021 - 2³ = 13130422013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13130422021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13130422001) 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, 417105 + ... + 447478.

It is an arithmetic number, because the mean of its divisors is an integer number (3282825448).

Almost surely, 2^13130422021 is an apocalyptic number.

It is an amenable number.

13130422021 is a deficient number, since it is larger than the sum of its proper divisors (879771).

13130422021 is an equidigital number, since it uses as much as digits as its factorization.

13130422021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 879770.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13130422021 its reverse (12022403131), we get a palindrome (25152825152).

The spelling of 13130422021 in words is "thirteen billion, one hundred thirty million, four hundred twenty-two thousand, twenty-one".