1123433161 has 2 divisors, whose sum is σ = 1123433162. Its totient is φ = 1123433160.

The previous prime is 1123433119. The next prime is 1123433203. The reversal of 1123433161 is 1613343211.

It is a balanced prime because it is at equal distance from previous prime (1123433119) and next prime (1123433203).

It can be written as a sum of positive squares in only one way, i.e., 594433161 + 529000000 = 24381^2 + 23000^2 .

It is a cyclic number.

It is not a de Polignac number, because 1123433161 - 2²⁵ = 1089878729 is a prime.

It is not a weakly prime, because it can be changed into another prime (1123433111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 561716580 + 561716581.

It is an arithmetic number, because the mean of its divisors is an integer number (561716581).

Almost surely, 2^1123433161 is an apocalyptic number.

It is an amenable number.

1123433161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1123433161 is an equidigital number, since it uses as much as digits as its factorization.

1123433161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296, while the sum is 25.

The square root of 1123433161 is about 33517.6544674594. The cubic root of 1123433161 is about 1039.5588492018.

Adding to 1123433161 its reverse (1613343211), we get a palindrome (2736776372).

The spelling of 1123433161 in words is "one billion, one hundred twenty-three million, four hundred thirty-three thousand, one hundred sixty-one".