1121814481 has 2 divisors, whose sum is σ = 1121814482. Its totient is φ = 1121814480.

The previous prime is 1121814469. The next prime is 1121814493. The reversal of 1121814481 is 1844181211.

It is a balanced prime because it is at equal distance from previous prime (1121814469) and next prime (1121814493).

It can be written as a sum of positive squares in only one way, i.e., 1088406081 + 33408400 = 32991^2 + 5780^2 .

It is a cyclic number.

It is not a de Polignac number, because 1121814481 - 2¹⁹ = 1121290193 is a prime.

It is a super-2 number, since 2×1121814481² = 2516935459562598722, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1121814431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560907240 + 560907241.

It is an arithmetic number, because the mean of its divisors is an integer number (560907241).

Almost surely, 2^1121814481 is an apocalyptic number.

It is an amenable number.

1121814481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121814481 is an equidigital number, since it uses as much as digits as its factorization.

1121814481 is an evil number, because the sum of its binary digits is even.

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

The square root of 1121814481 is about 33493.4990856435. The cubic root of 1121814481 is about 1039.0593321875.

Adding to 1121814481 its reverse (1844181211), we get a palindrome (2965995692).

The spelling of 1121814481 in words is "one billion, one hundred twenty-one million, eight hundred fourteen thousand, four hundred eighty-one".