13235020523 has 16 divisors (see below), whose sum is σ = 14214368736. Its totient is φ = 12278200320.

The previous prime is 13235020501. The next prime is 13235020549. The reversal of 13235020523 is 32502053231.

It is a cyclic number.

It is not a de Polignac number, because 13235020523 - 2¹² = 13235016427 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13235020492 and 13235020501.

It is not an unprimeable number, because it can be changed into a prime (13235020553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3364868 + ... + 3368798.

It is an arithmetic number, because the mean of its divisors is an integer number (888398046).

Almost surely, 2^13235020523 is an apocalyptic number.

13235020523 is a deficient number, since it is larger than the sum of its proper divisors (979348213).

13235020523 is a wasteful number, since it uses less digits than its factorization.

13235020523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6734.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 13235020523 its reverse (32502053231), we get a palindrome (45737073754).

The spelling of 13235020523 in words is "thirteen billion, two hundred thirty-five million, twenty thousand, five hundred twenty-three".