1121414881 has 2 divisors, whose sum is σ = 1121414882. Its totient is φ = 1121414880.

The previous prime is 1121414851. The next prime is 1121414893. The reversal of 1121414881 is 1884141211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 891619600 + 229795281 = 29860^2 + 15159^2 .

It is an emirp because it is prime and its reverse (1884141211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121414881 - 2⁵ = 1121414849 is a prime.

It is a super-2 number, since 2×1121414881² = 2515142670656488322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1121414851) 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, 560707440 + 560707441.

It is an arithmetic number, because the mean of its divisors is an integer number (560707441).

Almost surely, 2^1121414881 is an apocalyptic number.

It is an amenable number.

1121414881 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121414881 is an equidigital number, since it uses as much as digits as its factorization.

1121414881 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2048, while the sum is 31.

The square root of 1121414881 is about 33487.5332176020. The cubic root of 1121414881 is about 1038.9359435683.

The spelling of 1121414881 in words is "one billion, one hundred twenty-one million, four hundred fourteen thousand, eight hundred eighty-one".