1121968433 has 2 divisors, whose sum is σ = 1121968434. Its totient is φ = 1121968432.

The previous prime is 1121968423. The next prime is 1121968439. The reversal of 1121968433 is 3348691211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1009459984 + 112508449 = 31772^2 + 10607^2 .

It is an emirp because it is prime and its reverse (3348691211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121968433 - 2¹⁴ = 1121952049 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1121968439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560984216 + 560984217.

It is an arithmetic number, because the mean of its divisors is an integer number (560984217).

Almost surely, 2^1121968433 is an apocalyptic number.

It is an amenable number.

1121968433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121968433 is an equidigital number, since it uses as much as digits as its factorization.

1121968433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 1121968433 is about 33495.7972438334. The cubic root of 1121968433 is about 1039.1068617175.

The spelling of 1121968433 in words is "one billion, one hundred twenty-one million, nine hundred sixty-eight thousand, four hundred thirty-three".