1213012208273 has 2 divisors, whose sum is σ = 1213012208274. Its totient is φ = 1213012208272.

The previous prime is 1213012208183. The next prime is 1213012208293. The reversal of 1213012208273 is 3728022103121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1182214766209 + 30797442064 = 1087297^2 + 175492^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213012208273 is a prime.

It is not a weakly prime, because it can be changed into another prime (1213012208293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606506104136 + 606506104137.

It is an arithmetic number, because the mean of its divisors is an integer number (606506104137).

Almost surely, 2^{1213012208273} is an apocalyptic number.

It is an amenable number.

1213012208273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213012208273 is an equidigital number, since it uses as much as digits as its factorization.

1213012208273 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 1213012208273 in words is "one trillion, two hundred thirteen billion, twelve million, two hundred eight thousand, two hundred seventy-three".