1021040042223 has 8 divisors (see below), whose sum is σ = 1393046879488. Its totient is φ = 664863283224.

The previous prime is 1021040042213. The next prime is 1021040042237. The reversal of 1021040042223 is 3222400401201.

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

It is not a de Polignac number, because 1021040042223 - 2²⁰ = 1021038993647 is a prime.

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 1021040042223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021040042213) 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, 3957519415 + ... + 3957519672.

It is an arithmetic number, because the mean of its divisors is an integer number (174130859936).

Almost surely, 2^{1021040042223} is an apocalyptic number.

1021040042223 is a deficient number, since it is larger than the sum of its proper divisors (372006837265).

1021040042223 is an equidigital number, since it uses as much as digits as its factorization.

1021040042223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7915039133.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 1021040042223 its reverse (3222400401201), we get a palindrome (4243440443424).

The spelling of 1021040042223 in words is "one trillion, twenty-one billion, forty million, forty-two thousand, two hundred twenty-three".