1121031073 has 2 divisors, whose sum is σ = 1121031074. Its totient is φ = 1121031072.

The previous prime is 1121031049. The next prime is 1121031127. The reversal of 1121031073 is 3701301211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 799079824 + 321951249 = 28268^2 + 17943^2 .

It is an emirp because it is prime and its reverse (3701301211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1121031073 - 2²⁵ = 1087476641 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121031073.

It is not a weakly prime, because it can be changed into another prime (1121031013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560515536 + 560515537.

It is an arithmetic number, because the mean of its divisors is an integer number (560515537).

Almost surely, 2^1121031073 is an apocalyptic number.

It is an amenable number.

1121031073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121031073 is an equidigital number, since it uses as much as digits as its factorization.

1121031073 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 1121031073 is about 33481.8021169709. The cubic root of 1121031073 is about 1038.8174036080.

Adding to 1121031073 its reverse (3701301211), we get a palindrome (4822332284).

The spelling of 1121031073 in words is "one billion, one hundred twenty-one million, thirty-one thousand, seventy-three".