1021110133223 has 4 divisors (see below), whose sum is σ = 1023325123128. Its totient is φ = 1018895143320.

The previous prime is 1021110133217. The next prime is 1021110133231. The reversal of 1021110133223 is 3223310111201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1021110133223 - 2¹⁰ = 1021110132199 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1021110133195 and 1021110133204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021110133283) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1107494261 + ... + 1107495182.

It is an arithmetic number, because the mean of its divisors is an integer number (255831280782).

Almost surely, 2^{1021110133223} is an apocalyptic number.

1021110133223 is a deficient number, since it is larger than the sum of its proper divisors (2214989905).

1021110133223 is an equidigital number, since it uses as much as digits as its factorization.

1021110133223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2214989904.

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

Adding to 1021110133223 its reverse (3223310111201), we get a palindrome (4244420244424).

The spelling of 1021110133223 in words is "one trillion, twenty-one billion, one hundred ten million, one hundred thirty-three thousand, two hundred twenty-three".