1012021331213 has 8 divisors (see below), whose sum is σ = 1017650970336. Its totient is φ = 1006392114000.

The previous prime is 1012021331161. The next prime is 1012021331273. The reversal of 1012021331213 is 3121331202101.

It is a happy number.

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 1012021331213 - 2¹⁶ = 1012021265677 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012021331273) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5543438 + ... + 5723088.

It is an arithmetic number, because the mean of its divisors is an integer number (127206371292).

Almost surely, 2^{1012021331213} is an apocalyptic number.

It is an amenable number.

1012021331213 is a deficient number, since it is larger than the sum of its proper divisors (5629639123).

1012021331213 is a wasteful number, since it uses less digits than its factorization.

1012021331213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210955.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1012021331213 its reverse (3121331202101), we get a palindrome (4133352533314).

The spelling of 1012021331213 in words is "one trillion, twelve billion, twenty-one million, three hundred thirty-one thousand, two hundred thirteen".