11513422156361 has 4 divisors (see below), whose sum is σ = 11513467964052. Its totient is φ = 11513376348672.

The previous prime is 11513422156349. The next prime is 11513422156429. The reversal of 11513422156361 is 16365122431511.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3088735950400 + 8424686205961 = 1757480^2 + 2902531^2 .

It is a cyclic number.

It is not a de Polignac number, because 11513422156361 - 2¹⁸ = 11513421894217 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11513422152361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22524740 + ... + 23030213.

It is an arithmetic number, because the mean of its divisors is an integer number (2878366991013).

Almost surely, 2^{11513422156361} is an apocalyptic number.

It is an amenable number.

11513422156361 is a deficient number, since it is larger than the sum of its proper divisors (45807691).

11513422156361 is an equidigital number, since it uses as much as digits as its factorization.

11513422156361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45807690.

The product of its digits is 129600, while the sum is 41.

Adding to 11513422156361 its reverse (16365122431511), we get a palindrome (27878544587872).

The spelling of 11513422156361 in words is "eleven trillion, five hundred thirteen billion, four hundred twenty-two million, one hundred fifty-six thousand, three hundred sixty-one".