121223301030203 has 24 divisors (see below), whose sum is σ = 126803163068736. Its totient is φ = 115879430898000.

The previous prime is 121223301030137. The next prime is 121223301030211. The reversal of 121223301030203 is 302030103322121.

It is not a de Polignac number, because 121223301030203 - 2⁸ = 121223301029947 is a prime.

It is a super-2 number, since 2×121223301030203² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121223301030703) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6452500376 + ... + 6452519162.

It is an arithmetic number, because the mean of its divisors is an integer number (5283465127864).

Almost surely, 2^{121223301030203} is an apocalyptic number.

121223301030203 is a deficient number, since it is larger than the sum of its proper divisors (5579862038533).

121223301030203 is a wasteful number, since it uses less digits than its factorization.

121223301030203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25895 (or 25872 counting only the distinct ones).

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

Adding to 121223301030203 its reverse (302030103322121), we get a palindrome (423253404352324).

The spelling of 121223301030203 in words is "one hundred twenty-one trillion, two hundred twenty-three billion, three hundred one million, thirty thousand, two hundred three".