2312205121 has 2 divisors, whose sum is σ = 2312205122. Its totient is φ = 2312205120.

The previous prime is 2312205107. The next prime is 2312205131. The reversal of 2312205121 is 1215022132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2100938896 + 211266225 = 45836^2 + 14535^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312205121 - 2⁵ = 2312205089 is a prime.

It is not a weakly prime, because it can be changed into another prime (2312205131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156102560 + 1156102561.

It is an arithmetic number, because the mean of its divisors is an integer number (1156102561).

Almost surely, 2^2312205121 is an apocalyptic number.

It is an amenable number.

2312205121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312205121 is an equidigital number, since it uses as much as digits as its factorization.

2312205121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 240, while the sum is 19.

The square root of 2312205121 is about 48085.3940505846. The cubic root of 2312205121 is about 1322.3369073575.

Adding to 2312205121 its reverse (1215022132), we get a palindrome (3527227253).

The spelling of 2312205121 in words is "two billion, three hundred twelve million, two hundred five thousand, one hundred twenty-one".