11101121387 has 2 divisors, whose sum is σ = 11101121388. Its totient is φ = 11101121386.

The previous prime is 11101121257. The next prime is 11101121407. The reversal of 11101121387 is 78312110111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11101121387 - 2⁸ = 11101121131 is a prime.

It is not a weakly prime, because it can be changed into another prime (11101151387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550560693 + 5550560694.

It is an arithmetic number, because the mean of its divisors is an integer number (5550560694).

Almost surely, 2^11101121387 is an apocalyptic number.

11101121387 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101121387 is an equidigital number, since it uses as much as digits as its factorization.

11101121387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 26.

Adding to 11101121387 its reverse (78312110111), we get a palindrome (89413231498).

The spelling of 11101121387 in words is "eleven billion, one hundred one million, one hundred twenty-one thousand, three hundred eighty-seven".