1012012320311 has 4 divisors (see below), whose sum is σ = 1012143366792. Its totient is φ = 1011881273832.

The previous prime is 1012012320281. The next prime is 1012012320337. The reversal of 1012012320311 is 1130232102101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1012012320311 - 2¹⁰ = 1012012319287 is a prime.

It is a super-2 number, since 2×1012012320311² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1012012320311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012012320391) 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 in 3 ways as a sum of consecutive naturals, for example, 65511656 + ... + 65527101.

It is an arithmetic number, because the mean of its divisors is an integer number (253035841698).

Almost surely, 2^{1012012320311} is an apocalyptic number.

1012012320311 is a deficient number, since it is larger than the sum of its proper divisors (131046481).

1012012320311 is an equidigital number, since it uses as much as digits as its factorization.

1012012320311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131046480.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1012012320311 its reverse (1130232102101), we get a palindrome (2142244422412).

The spelling of 1012012320311 in words is "one trillion, twelve billion, twelve million, three hundred twenty thousand, three hundred eleven".