312243053 has 2 divisors, whose sum is σ = 312243054. Its totient is φ = 312243052.

The previous prime is 312243049. The next prime is 312243077. The reversal of 312243053 is 350342213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 278289124 + 33953929 = 16682^2 + 5827^2 .

It is a cyclic number.

It is not a de Polignac number, because 312243053 - 2² = 312243049 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (312243083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156121526 + 156121527.

It is an arithmetic number, because the mean of its divisors is an integer number (156121527).

Almost surely, 2^312243053 is an apocalyptic number.

It is an amenable number.

312243053 is a deficient number, since it is larger than the sum of its proper divisors (1).

312243053 is an equidigital number, since it uses as much as digits as its factorization.

312243053 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 312243053 is about 17670.4004765031. The cubic root of 312243053 is about 678.4183634264.

Adding to 312243053 its reverse (350342213), we get a palindrome (662585266).

The spelling of 312243053 in words is "three hundred twelve million, two hundred forty-three thousand, fifty-three".