1021122312311 has 2 divisors, whose sum is σ = 1021122312312. Its totient is φ = 1021122312310.

The previous prime is 1021122312289. The next prime is 1021122312323. The reversal of 1021122312311 is 1132132211201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021122312311 - 2³⁰ = 1020048570487 is a prime.

It is a super-4 number, since 4×1021122312311⁴ (a number of 49 digits) contains 4444 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021122312391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510561156155 + 510561156156.

It is an arithmetic number, because the mean of its divisors is an integer number (510561156156).

Almost surely, 2^{1021122312311} is an apocalyptic number.

1021122312311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021122312311 is an equidigital number, since it uses as much as digits as its factorization.

1021122312311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 1021122312311 its reverse (1132132211201), we get a palindrome (2153254523512).

The spelling of 1021122312311 in words is "one trillion, twenty-one billion, one hundred twenty-two million, three hundred twelve thousand, three hundred eleven".