1212310049 has 2 divisors, whose sum is σ = 1212310050. Its totient is φ = 1212310048.

The previous prime is 1212310027. The next prime is 1212310081. The reversal of 1212310049 is 9400132121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1193011600 + 19298449 = 34540^2 + 4393^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212310049 - 2¹⁶ = 1212244513 is a prime.

It is not a weakly prime, because it can be changed into another prime (1212310249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606155024 + 606155025.

It is an arithmetic number, because the mean of its divisors is an integer number (606155025).

Almost surely, 2^1212310049 is an apocalyptic number.

It is an amenable number.

1212310049 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212310049 is an equidigital number, since it uses as much as digits as its factorization.

1212310049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 23.

The square root of 1212310049 is about 34818.2430487238. The cubic root of 1212310049 is about 1066.2799305790.

The spelling of 1212310049 in words is "one billion, two hundred twelve million, three hundred ten thousand, forty-nine".