15213123341203 has 2 divisors, whose sum is σ = 15213123341204. Its totient is φ = 15213123341202.

The previous prime is 15213123341191. The next prime is 15213123341281. The reversal of 15213123341203 is 30214332131251.

It is a weak prime.

It is an emirp because it is prime and its reverse (30214332131251) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 15213123341203 - 2²⁵ = 15213089786771 is a prime.

It is not a weakly prime, because it can be changed into another prime (15213123341903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7606561670601 + 7606561670602.

It is an arithmetic number, because the mean of its divisors is an integer number (7606561670602).

Almost surely, 2^{15213123341203} is an apocalyptic number.

15213123341203 is a deficient number, since it is larger than the sum of its proper divisors (1).

15213123341203 is an equidigital number, since it uses as much as digits as its factorization.

15213123341203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 15213123341203 its reverse (30214332131251), we get a palindrome (45427455472454).

The spelling of 15213123341203 in words is "fifteen trillion, two hundred thirteen billion, one hundred twenty-three million, three hundred forty-one thousand, two hundred three".