1000231223213 has 8 divisors (see below), whose sum is σ = 1028124139896. Its totient is φ = 972504832000.

The previous prime is 1000231223179. The next prime is 1000231223237. The reversal of 1000231223213 is 3123221320001.

It can be written as a sum of positive squares in 4 ways, for example, as 1536796804 + 998694426409 = 39202^2 + 999347^2 .

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 1000231223213 - 2⁶ = 1000231223149 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 (1000231223513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41619188 + ... + 41643213.

It is an arithmetic number, because the mean of its divisors is an integer number (128515517487).

Almost surely, 2^{1000231223213} is an apocalyptic number.

It is an amenable number.

1000231223213 is a deficient number, since it is larger than the sum of its proper divisors (27892916683).

1000231223213 is an equidigital number, since it uses as much as digits as its factorization.

1000231223213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83262735.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1000231223213 its reverse (3123221320001), we get a palindrome (4123452543214).

The spelling of 1000231223213 in words is "one trillion, two hundred thirty-one million, two hundred twenty-three thousand, two hundred thirteen".