121223120303003 has 4 divisors (see below), whose sum is σ = 121226654848200. Its totient is φ = 121219585757808.

The previous prime is 121223120302939. The next prime is 121223120303017. The reversal of 121223120303003 is 300303021322121.

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 121223120303003 - 2⁶ = 121223120302939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 121223120303003.

It is not an unprimeable number, because it can be changed into a prime (121223120303023) 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, 1767221153 + ... + 1767289746.

It is an arithmetic number, because the mean of its divisors is an integer number (30306663712050).

Almost surely, 2^{121223120303003} is an apocalyptic number.

121223120303003 is a deficient number, since it is larger than the sum of its proper divisors (3534545197).

121223120303003 is an equidigital number, since it uses as much as digits as its factorization.

121223120303003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3534545196.

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

Adding to 121223120303003 its reverse (300303021322121), we get a palindrome (421526141625124).

The spelling of 121223120303003 in words is "one hundred twenty-one trillion, two hundred twenty-three billion, one hundred twenty million, three hundred three thousand, three".