1232313161 has 2 divisors, whose sum is σ = 1232313162. Its totient is φ = 1232313160.

The previous prime is 1232313127. The next prime is 1232313169. The reversal of 1232313161 is 1613132321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 958212025 + 274101136 = 30955^2 + 16556^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232313161 - 2¹⁴ = 1232296777 is a prime.

It is not a weakly prime, because it can be changed into another prime (1232313169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 616156580 + 616156581.

It is an arithmetic number, because the mean of its divisors is an integer number (616156581).

Almost surely, 2^1232313161 is an apocalyptic number.

It is an amenable number.

1232313161 is a deficient number, since it is larger than the sum of its proper divisors (1).

1232313161 is an equidigital number, since it uses as much as digits as its factorization.

1232313161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 648, while the sum is 23.

The square root of 1232313161 is about 35104.3182671306. The cubic root of 1232313161 is about 1072.1125065819.

Adding to 1232313161 its reverse (1613132321), we get a palindrome (2845445482).

The spelling of 1232313161 in words is "one billion, two hundred thirty-two million, three hundred thirteen thousand, one hundred sixty-one".