1210012913 has 2 divisors, whose sum is σ = 1210012914. Its totient is φ = 1210012912.

The previous prime is 1210012889. The next prime is 1210013083. The reversal of 1210012913 is 3192100121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 701826064 + 508186849 = 26492^2 + 22543^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210012913 - 2¹⁸ = 1209750769 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1210092913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605006456 + 605006457.

It is an arithmetic number, because the mean of its divisors is an integer number (605006457).

Almost surely, 2^1210012913 is an apocalyptic number.

It is an amenable number.

1210012913 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210012913 is an equidigital number, since it uses as much as digits as its factorization.

1210012913 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 20.

The square root of 1210012913 is about 34785.2398726816. The cubic root of 1210012913 is about 1065.6060274203.

The spelling of 1210012913 in words is "one billion, two hundred ten million, twelve thousand, nine hundred thirteen".