11240121312187 has 2 divisors, whose sum is σ = 11240121312188. Its totient is φ = 11240121312186.

The previous prime is 11240121312163. The next prime is 11240121312221. The reversal of 11240121312187 is 78121312104211.

It is an a-pointer prime, because the next prime (11240121312221) can be obtained adding 11240121312187 to its sum of digits (34).

It is a weak prime.

It is an emirp because it is prime and its reverse (78121312104211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11240121312187 - 2¹⁹ = 11240120787899 is a prime.

It is a super-2 number, since 2×11240121312187² (a number of 27 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (11240121312127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5620060656093 + 5620060656094.

It is an arithmetic number, because the mean of its divisors is an integer number (5620060656094).

Almost surely, 2^{11240121312187} is an apocalyptic number.

11240121312187 is a deficient number, since it is larger than the sum of its proper divisors (1).

11240121312187 is an equidigital number, since it uses as much as digits as its factorization.

11240121312187 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 34.

Adding to 11240121312187 its reverse (78121312104211), we get a palindrome (89361433416398).

The spelling of 11240121312187 in words is "eleven trillion, two hundred forty billion, one hundred twenty-one million, three hundred twelve thousand, one hundred eighty-seven".