11315001251 has 2 divisors, whose sum is σ = 11315001252. Its totient is φ = 11315001250.

The previous prime is 11315001227. The next prime is 11315001283. The reversal of 11315001251 is 15210051311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11315001251 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (11315001751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5657500625 + 5657500626.

It is an arithmetic number, because the mean of its divisors is an integer number (5657500626).

Almost surely, 2^11315001251 is an apocalyptic number.

11315001251 is a deficient number, since it is larger than the sum of its proper divisors (1).

11315001251 is an equidigital number, since it uses as much as digits as its factorization.

11315001251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 150, while the sum is 20.

Adding to 11315001251 its reverse (15210051311), we get a palindrome (26525052562).

The spelling of 11315001251 in words is "eleven billion, three hundred fifteen million, one thousand, two hundred fifty-one".