1213101203267 has 2 divisors, whose sum is σ = 1213101203268. Its totient is φ = 1213101203266.

The previous prime is 1213101203239. The next prime is 1213101203371. The reversal of 1213101203267 is 7623021013121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1213101203267 - 2⁶ = 1213101203203 is a prime.

It is a super-2 number, since 2×1213101203267² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1213151203267) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606550601633 + 606550601634.

It is an arithmetic number, because the mean of its divisors is an integer number (606550601634).

Almost surely, 2^{1213101203267} is an apocalyptic number.

1213101203267 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213101203267 is an equidigital number, since it uses as much as digits as its factorization.

1213101203267 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3024, while the sum is 29.

Adding to 1213101203267 its reverse (7623021013121), we get a palindrome (8836122216388).

The spelling of 1213101203267 in words is "one trillion, two hundred thirteen billion, one hundred one million, two hundred three thousand, two hundred sixty-seven".