1220123333103 has 4 divisors (see below), whose sum is σ = 1626831110808. Its totient is φ = 813415555400.

The previous prime is 1220123333057. The next prime is 1220123333119. The reversal of 1220123333103 is 3013333210221.

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 1220123333103 - 2¹³ = 1220123324911 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1220123333153) 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, 203353888848 + ... + 203353888853.

It is an arithmetic number, because the mean of its divisors is an integer number (406707777702).

Almost surely, 2^{1220123333103} is an apocalyptic number.

1220123333103 is a deficient number, since it is larger than the sum of its proper divisors (406707777705).

1220123333103 is an equidigital number, since it uses as much as digits as its factorization.

1220123333103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 406707777704.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 1220123333103 its reverse (3013333210221), we get a palindrome (4233456543324).

The spelling of 1220123333103 in words is "one trillion, two hundred twenty billion, one hundred twenty-three million, three hundred thirty-three thousand, one hundred three".