121023203 has 8 divisors (see below), whose sum is σ = 138569472. Its totient is φ = 103541256.

The previous prime is 121023169. The next prime is 121023209. The reversal of 121023203 is 302320121.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-121023203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121023209) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11975 + ... + 19632.

It is an arithmetic number, because the mean of its divisors is an integer number (17321184).

Almost surely, 2^121023203 is an apocalyptic number.

121023203 is a deficient number, since it is larger than the sum of its proper divisors (17546269).

121023203 is an equidigital number, since it uses as much as digits as its factorization.

121023203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32161.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 121023203 is about 11001.0546312615. The cubic root of 121023203 is about 494.6403577497.

Adding to 121023203 its reverse (302320121), we get a palindrome (423343324).

The spelling of 121023203 in words is "one hundred twenty-one million, twenty-three thousand, two hundred three".