1123020323221 has 8 divisors (see below), whose sum is σ = 1205827953984. Its totient is φ = 1042073538240.

The previous prime is 1123020323189. The next prime is 1123020323279. The reversal of 1123020323221 is 1223230203211.

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 1123020323221 - 2⁵ = 1123020323189 is a prime.

It is a super-2 number, since 2×1123020323221² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123020323192 and 1123020323201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123020323921) 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, 465210195 + ... + 465212608.

It is an arithmetic number, because the mean of its divisors is an integer number (150728494248).

Almost surely, 2^{1123020323221} is an apocalyptic number.

It is an amenable number.

1123020323221 is a deficient number, since it is larger than the sum of its proper divisors (82807630763).

1123020323221 is an equidigital number, since it uses as much as digits as its factorization.

1123020323221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 930422891.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 1123020323221 its reverse (1223230203211), we get a palindrome (2346250526432).

The spelling of 1123020323221 in words is "one trillion, one hundred twenty-three billion, twenty million, three hundred twenty-three thousand, two hundred twenty-one".