1220123133103 has 16 divisors (see below), whose sum is σ = 1397181213760. Its totient is φ = 1043755497216.

The previous prime is 1220123133049. The next prime is 1220123133107. The reversal of 1220123133103 is 3013313210221.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1220123133103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220123133107) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8430313 + ... + 8573821.

It is an arithmetic number, because the mean of its divisors is an integer number (87323825860).

Almost surely, 2^{1220123133103} is an apocalyptic number.

1220123133103 is a deficient number, since it is larger than the sum of its proper divisors (177058080657).

1220123133103 is a wasteful number, since it uses less digits than its factorization.

1220123133103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145906.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1220123133103 its reverse (3013313210221), we get a palindrome (4233436343324).

The spelling of 1220123133103 in words is "one trillion, two hundred twenty billion, one hundred twenty-three million, one hundred thirty-three thousand, one hundred three".