15531341203 has 12 divisors (see below), whose sum is σ = 18113537520. Its totient is φ = 13278339312.

The previous prime is 15531341179. The next prime is 15531341207. The reversal of 15531341203 is 30214313551.

It is a happy number.

It is not a de Polignac number, because 15531341203 - 2⁹ = 15531340691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15531341207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 388351 + ... + 426472.

It is an arithmetic number, because the mean of its divisors is an integer number (1509461460).

Almost surely, 2^15531341203 is an apocalyptic number.

15531341203 is a deficient number, since it is larger than the sum of its proper divisors (2582196317).

15531341203 is an equidigital number, since it uses as much as digits as its factorization.

15531341203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815226 (or 815219 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 28.

Adding to 15531341203 its reverse (30214313551), we get a palindrome (45745654754).

The spelling of 15531341203 in words is "fifteen billion, five hundred thirty-one million, three hundred forty-one thousand, two hundred three".