1021200223103 has 8 divisors (see below), whose sum is σ = 1081296227088. Its totient is φ = 961107041664.

The previous prime is 1021200223051. The next prime is 1021200223189. The reversal of 1021200223103 is 3013220021201.

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 1021200223103 - 2⁶ = 1021200223039 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021200223003) 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, 63200 + ... + 1430522.

It is an arithmetic number, because the mean of its divisors is an integer number (135162028386).

Almost surely, 2^{1021200223103} is an apocalyptic number.

1021200223103 is a deficient number, since it is larger than the sum of its proper divisors (60096003985).

1021200223103 is a wasteful number, since it uses less digits than its factorization.

1021200223103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1411273.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1021200223103 its reverse (3013220021201), we get a palindrome (4034420244304).

The spelling of 1021200223103 in words is "one trillion, twenty-one billion, two hundred million, two hundred twenty-three thousand, one hundred three".