13530223412 has 12 divisors (see below), whose sum is σ = 24494370180. Its totient is φ = 6531831936.

The previous prime is 13530223387. The next prime is 13530223459. The reversal of 13530223412 is 21432203531.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 10840141456 + 2690081956 = 104116^2 + 51866^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58319813 + ... + 58320044.

It is an arithmetic number, because the mean of its divisors is an integer number (2041197515).

Almost surely, 2^13530223412 is an apocalyptic number.

It is an amenable number.

13530223412 is a deficient number, since it is larger than the sum of its proper divisors (10964146768).

13530223412 is a wasteful number, since it uses less digits than its factorization.

13530223412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 116639890 (or 116639888 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 26.

Adding to 13530223412 its reverse (21432203531), we get a palindrome (34962426943).

The spelling of 13530223412 in words is "thirteen billion, five hundred thirty million, two hundred twenty-three thousand, four hundred twelve".