121023120203 has 8 divisors (see below), whose sum is σ = 121218734448. Its totient is φ = 120827561184.

The previous prime is 121023120199. The next prime is 121023120221. The reversal of 121023120203 is 302021320121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121023120203 - 2² = 121023120199 is a prime.

It is a super-2 number, since 2×121023120203² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121023128203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7803725 + ... + 7819217.

It is an arithmetic number, because the mean of its divisors is an integer number (15152341806).

Almost surely, 2^121023120203 is an apocalyptic number.

121023120203 is a deficient number, since it is larger than the sum of its proper divisors (195614245).

121023120203 is a wasteful number, since it uses less digits than its factorization.

121023120203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27613.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121023120203 its reverse (302021320121), we get a palindrome (423044440324).

The spelling of 121023120203 in words is "one hundred twenty-one billion, twenty-three million, one hundred twenty thousand, two hundred three".