13230220523 has 16 divisors (see below), whose sum is σ = 14316958656. Its totient is φ = 12153446400.

The previous prime is 13230220519. The next prime is 13230220571. The reversal of 13230220523 is 32502203231.

It is a cyclic number.

It is not a de Polignac number, because 13230220523 - 2² = 13230220519 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13230220513) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5472611 + ... + 5475027.

It is an arithmetic number, because the mean of its divisors is an integer number (894809916).

Almost surely, 2^13230220523 is an apocalyptic number.

13230220523 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13230220523 is a deficient number, since it is larger than the sum of its proper divisors (1086738133).

13230220523 is a wasteful number, since it uses less digits than its factorization.

13230220523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4294.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 13230220523 its reverse (32502203231), we get a palindrome (45732423754).

The spelling of 13230220523 in words is "thirteen billion, two hundred thirty million, two hundred twenty thousand, five hundred twenty-three".