4312211161 has 2 divisors, whose sum is σ = 4312211162. Its totient is φ = 4312211160.

The previous prime is 4312211147. The next prime is 4312211243. The reversal of 4312211161 is 1611122134.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4017024400 + 295186761 = 63380^2 + 17181^2 .

It is a cyclic number.

It is not a de Polignac number, because 4312211161 - 2¹¹ = 4312209113 is a prime.

It is a super-3 number, since 3×4312211161³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (4112211161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2156105580 + 2156105581.

It is an arithmetic number, because the mean of its divisors is an integer number (2156105581).

Almost surely, 2^4312211161 is an apocalyptic number.

It is an amenable number.

4312211161 is a deficient number, since it is larger than the sum of its proper divisors (1).

4312211161 is an equidigital number, since it uses as much as digits as its factorization.

4312211161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 288, while the sum is 22.

The square root of 4312211161 is about 65667.4284634323. The cubic root of 4312211161 is about 1627.6711773283.

Adding to 4312211161 its reverse (1611122134), we get a palindrome (5923333295).

The spelling of 4312211161 in words is "four billion, three hundred twelve million, two hundred eleven thousand, one hundred sixty-one".