13012020223 has 4 divisors (see below), whose sum is σ = 13012267840. Its totient is φ = 13011772608.

The previous prime is 13012020209. The next prime is 13012020247. The reversal of 13012020223 is 32202021031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32202021031 = 83 ⋅387976157.

It is a cyclic number.

It is not a de Polignac number, because 13012020223 - 2⁹ = 13012019711 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13012020197 and 13012020206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13012020293) 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, 10290 + ... + 161647.

It is an arithmetic number, because the mean of its divisors is an integer number (3253066960).

Almost surely, 2^13012020223 is an apocalyptic number.

13012020223 is a deficient number, since it is larger than the sum of its proper divisors (247617).

13012020223 is an equidigital number, since it uses as much as digits as its factorization.

13012020223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247616.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 13012020223 its reverse (32202021031), we get a palindrome (45214041254).

The spelling of 13012020223 in words is "thirteen billion, twelve million, twenty thousand, two hundred twenty-three".