2312504221 has 2 divisors, whose sum is σ = 2312504222. Its totient is φ = 2312504220.

The previous prime is 2312504113. The next prime is 2312504261. The reversal of 2312504221 is 1224052132.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2278152900 + 34351321 = 47730^2 + 5861^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312504221 - 2¹³ = 2312496029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2312504192 and 2312504201.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2312504261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156252110 + 1156252111.

It is an arithmetic number, because the mean of its divisors is an integer number (1156252111).

Almost surely, 2^2312504221 is an apocalyptic number.

It is an amenable number.

2312504221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2312504221 is an equidigital number, since it uses as much as digits as its factorization.

2312504221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2312504221 is about 48088.5040420265. The cubic root of 2312504221 is about 1322.3939227599.

Adding to 2312504221 its reverse (1224052132), we get a palindrome (3536556353).

The spelling of 2312504221 in words is "two billion, three hundred twelve million, five hundred four thousand, two hundred twenty-one".