13212050452 has 6 divisors (see below), whose sum is σ = 23121088298. Its totient is φ = 6606025224.

The previous prime is 13212050437. The next prime is 13212050491. The reversal of 13212050452 is 25405021231.

It can be written as a sum of positive squares in only one way, i.e., 9885529476 + 3326520976 = 99426^2 + 57676^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1651506303 + ... + 1651506310.

Almost surely, 2^13212050452 is an apocalyptic number.

It is an amenable number.

13212050452 is a deficient number, since it is larger than the sum of its proper divisors (9909037846).

13212050452 is a wasteful number, since it uses less digits than its factorization.

13212050452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3303012617 (or 3303012615 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 25.

Adding to 13212050452 its reverse (25405021231), we get a palindrome (38617071683).

The spelling of 13212050452 in words is "thirteen billion, two hundred twelve million, fifty thousand, four hundred fifty-two".