11103377381 has 2 divisors, whose sum is σ = 11103377382. Its totient is φ = 11103377380.

The previous prime is 11103377347. The next prime is 11103377419. The reversal of 11103377381 is 18377330111.

It is a happy number.

11103377381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6734828356 + 4368549025 = 82066^2 + 66095^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11103377381 is a prime.

It is a super-2 number, since 2×11103377381² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11103377281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5551688690 + 5551688691.

It is an arithmetic number, because the mean of its divisors is an integer number (5551688691).

Almost surely, 2^11103377381 is an apocalyptic number.

It is an amenable number.

11103377381 is a deficient number, since it is larger than the sum of its proper divisors (1).

11103377381 is an equidigital number, since it uses as much as digits as its factorization.

11103377381 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10584, while the sum is 35.

The spelling of 11103377381 in words is "eleven billion, one hundred three million, three hundred seventy-seven thousand, three hundred eighty-one".