13513010167421 has 2 divisors, whose sum is σ = 13513010167422. Its totient is φ = 13513010167420.

The previous prime is 13513010167411. The next prime is 13513010167451. The reversal of 13513010167421 is 12476101031531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8479219848100 + 5033790319321 = 2911910^2 + 2243611^2 .

It is a cyclic number.

It is not a de Polignac number, because 13513010167421 - 2¹⁸ = 13513009905277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13513010167411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6756505083710 + 6756505083711.

It is an arithmetic number, because the mean of its divisors is an integer number (6756505083711).

Almost surely, 2^{13513010167421} is an apocalyptic number.

It is an amenable number.

13513010167421 is a deficient number, since it is larger than the sum of its proper divisors (1).

13513010167421 is an equidigital number, since it uses as much as digits as its factorization.

13513010167421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15120, while the sum is 35.

Adding to 13513010167421 its reverse (12476101031531), we get a palindrome (25989111198952).

The spelling of 13513010167421 in words is "thirteen trillion, five hundred thirteen billion, ten million, one hundred sixty-seven thousand, four hundred twenty-one".