1212323207 has 2 divisors, whose sum is σ = 1212323208. Its totient is φ = 1212323206.

The previous prime is 1212323183. The next prime is 1212323239. The reversal of 1212323207 is 7023232121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212323207 - 2⁶ = 1212323143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212323257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606161603 + 606161604.

It is an arithmetic number, because the mean of its divisors is an integer number (606161604).

Almost surely, 2^1212323207 is an apocalyptic number.

1212323207 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212323207 is an equidigital number, since it uses as much as digits as its factorization.

1212323207 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 1212323207 is about 34818.4320008814. The cubic root of 1212323207 is about 1066.2837882447.

Adding to 1212323207 its reverse (7023232121), we get a palindrome (8235555328).

The spelling of 1212323207 in words is "one billion, two hundred twelve million, three hundred twenty-three thousand, two hundred seven".