1012123331311 has 8 divisors (see below), whose sum is σ = 1014860307600. Its totient is φ = 1009386705600.

The previous prime is 1012123331291. The next prime is 1012123331377. The reversal of 1012123331311 is 1131333212101.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012123331311 - 2¹³ = 1012123323119 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012123331711) 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 in 7 ways as a sum of consecutive naturals, for example, 6326475 + ... + 6484483.

It is an arithmetic number, because the mean of its divisors is an integer number (126857538450).

Almost surely, 2^{1012123331311} is an apocalyptic number.

1012123331311 is a deficient number, since it is larger than the sum of its proper divisors (2736976289).

1012123331311 is a wasteful number, since it uses less digits than its factorization.

1012123331311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175289.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1012123331311 its reverse (1131333212101), we get a palindrome (2143456543412).

The spelling of 1012123331311 in words is "one trillion, twelve billion, one hundred twenty-three million, three hundred thirty-one thousand, three hundred eleven".