1121122073 has 2 divisors, whose sum is σ = 1121122074. Its totient is φ = 1121122072.

The previous prime is 1121122061. The next prime is 1121122117. The reversal of 1121122073 is 3702211211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 810939529 + 310182544 = 28477^2 + 17612^2 .

It is an emirp because it is prime and its reverse (3702211211) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121122073 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121122033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560561036 + 560561037.

It is an arithmetic number, because the mean of its divisors is an integer number (560561037).

Almost surely, 2^1121122073 is an apocalyptic number.

It is an amenable number.

1121122073 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121122073 is an equidigital number, since it uses as much as digits as its factorization.

1121122073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 20.

The square root of 1121122073 is about 33483.1610365569. The cubic root of 1121122073 is about 1038.8455116085.

Adding to 1121122073 its reverse (3702211211), we get a palindrome (4823333284).

The spelling of 1121122073 in words is "one billion, one hundred twenty-one million, one hundred twenty-two thousand, seventy-three".