1311120001267 has 2 divisors, whose sum is σ = 1311120001268. Its totient is φ = 1311120001266.

The previous prime is 1311120001249. The next prime is 1311120001319. The reversal of 1311120001267 is 7621000211131.

It is a weak prime.

It is an emirp because it is prime and its reverse (7621000211131) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1311120001267 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311120001567) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655560000633 + 655560000634.

It is an arithmetic number, because the mean of its divisors is an integer number (655560000634).

Almost surely, 2^{1311120001267} is an apocalyptic number.

1311120001267 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311120001267 is an equidigital number, since it uses as much as digits as its factorization.

1311120001267 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 25.

Adding to 1311120001267 its reverse (7621000211131), we get a palindrome (8932120212398).

The spelling of 1311120001267 in words is "one trillion, three hundred eleven billion, one hundred twenty million, one thousand, two hundred sixty-seven".