13130433213421 has 2 divisors, whose sum is σ = 13130433213422. Its totient is φ = 13130433213420.

The previous prime is 13130433213383. The next prime is 13130433213493. The reversal of 13130433213421 is 12431233403131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10705421223396 + 2425011990025 = 3271914^2 + 1557245^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13130433213421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13130443213421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6565216606710 + 6565216606711.

It is an arithmetic number, because the mean of its divisors is an integer number (6565216606711).

Almost surely, 2^{13130433213421} is an apocalyptic number.

It is an amenable number.

13130433213421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13130433213421 is an equidigital number, since it uses as much as digits as its factorization.

13130433213421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15552, while the sum is 31.

Adding to 13130433213421 its reverse (12431233403131), we get a palindrome (25561666616552).

The spelling of 13130433213421 in words is "thirteen trillion, one hundred thirty billion, four hundred thirty-three million, two hundred thirteen thousand, four hundred twenty-one".