1301212117 has 2 divisors, whose sum is σ = 1301212118. Its totient is φ = 1301212116.

The previous prime is 1301212111. The next prime is 1301212123. The reversal of 1301212117 is 7112121031.

It is a balanced prime because it is at equal distance from previous prime (1301212111) and next prime (1301212123).

It can be written as a sum of positive squares in only one way, i.e., 1067917041 + 233295076 = 32679^2 + 15274^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1301212117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1301212094 and 1301212103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1301212111) 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, 650606058 + 650606059.

It is an arithmetic number, because the mean of its divisors is an integer number (650606059).

Almost surely, 2^1301212117 is an apocalyptic number.

It is an amenable number.

1301212117 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301212117 is an equidigital number, since it uses as much as digits as its factorization.

1301212117 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 84, while the sum is 19.

The square root of 1301212117 is about 36072.3178767320. The cubic root of 1301212117 is about 1091.7319817598.

Adding to 1301212117 its reverse (7112121031), we get a palindrome (8413333148).

The spelling of 1301212117 in words is "one billion, three hundred one million, two hundred twelve thousand, one hundred seventeen".