13531200251 has 2 divisors, whose sum is σ = 13531200252. Its totient is φ = 13531200250.

The previous prime is 13531200223. The next prime is 13531200257. The reversal of 13531200251 is 15200213531.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (15200213531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13531200251 - 2¹⁴ = 13531183867 is a prime.

It is not a weakly prime, because it can be changed into another prime (13531200257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765600125 + 6765600126.

It is an arithmetic number, because the mean of its divisors is an integer number (6765600126).

Almost surely, 2^13531200251 is an apocalyptic number.

13531200251 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531200251 is an equidigital number, since it uses as much as digits as its factorization.

13531200251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 900, while the sum is 23.

Adding to 13531200251 its reverse (15200213531), we get a palindrome (28731413782).

The spelling of 13531200251 in words is "thirteen billion, five hundred thirty-one million, two hundred thousand, two hundred fifty-one".