1211023321307 has 2 divisors, whose sum is σ = 1211023321308. Its totient is φ = 1211023321306.

The previous prime is 1211023321199. The next prime is 1211023321357. The reversal of 1211023321307 is 7031233201121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1211023321307 - 2²⁰ = 1211022272731 is a prime.

It is not a weakly prime, because it can be changed into another prime (1211023321357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605511660653 + 605511660654.

It is an arithmetic number, because the mean of its divisors is an integer number (605511660654).

Almost surely, 2^{1211023321307} is an apocalyptic number.

1211023321307 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211023321307 is an equidigital number, since it uses as much as digits as its factorization.

1211023321307 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 26.

Adding to 1211023321307 its reverse (7031233201121), we get a palindrome (8242256522428).

The spelling of 1211023321307 in words is "one trillion, two hundred eleven billion, twenty-three million, three hundred twenty-one thousand, three hundred seven".