1220123103233 has 4 divisors (see below), whose sum is σ = 1291895050500. Its totient is φ = 1148351155968.

The previous prime is 1220123103229. The next prime is 1220123103281. The reversal of 1220123103233 is 3323013210221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 862988976784 + 357134126449 = 928972^2 + 597607^2 .

It is a cyclic number.

It is not a de Polignac number, because 1220123103233 - 2² = 1220123103229 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1220123103199 and 1220123103208.

It is not an unprimeable number, because it can be changed into a prime (1220123103203) 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, 35885973608 + ... + 35885973641.

It is an arithmetic number, because the mean of its divisors is an integer number (322973762625).

Almost surely, 2^{1220123103233} is an apocalyptic number.

It is an amenable number.

1220123103233 is a deficient number, since it is larger than the sum of its proper divisors (71771947267).

1220123103233 is an equidigital number, since it uses as much as digits as its factorization.

1220123103233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71771947266.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 1220123103233 its reverse (3323013210221), we get a palindrome (4543136313454).

The spelling of 1220123103233 in words is "one trillion, two hundred twenty billion, one hundred twenty-three million, one hundred three thousand, two hundred thirty-three".