13423210529 has 4 divisors (see below), whose sum is σ = 13478908740. Its totient is φ = 13367512320.

The previous prime is 13423210477. The next prime is 13423210531. The reversal of 13423210529 is 92501232431.

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 12495886225 + 927324304 = 111785^2 + 30452^2 .

It is a cyclic number.

It is not a de Polignac number, because 13423210529 - 2¹⁶ = 13423144993 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13423210495 and 13423210504.

It is not an unprimeable number, because it can be changed into a prime (13423210729) 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, 27848744 + ... + 27849225.

It is an arithmetic number, because the mean of its divisors is an integer number (3369727185).

Almost surely, 2^13423210529 is an apocalyptic number.

It is an amenable number.

13423210529 is a deficient number, since it is larger than the sum of its proper divisors (55698211).

13423210529 is an equidigital number, since it uses as much as digits as its factorization.

13423210529 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55698210.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 13423210529 in words is "thirteen billion, four hundred twenty-three million, two hundred ten thousand, five hundred twenty-nine".