121120203 has 8 divisors (see below), whose sum is σ = 165858448. Its totient is φ = 78564384.

The previous prime is 121120199. The next prime is 121120229. The reversal of 121120203 is 302021121.

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

It is not a de Polignac number, because 121120203 - 2² = 121120199 is a prime.

It is a super-2 number, since 2×121120203² = 29340207149522418, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121120253) 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, 545476 + ... + 545697.

It is an arithmetic number, because the mean of its divisors is an integer number (20732306).

Almost surely, 2^121120203 is an apocalyptic number.

121120203 is a deficient number, since it is larger than the sum of its proper divisors (44738245).

121120203 is a wasteful number, since it uses less digits than its factorization.

121120203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1091213.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 121120203 is about 11005.4624164548. The cubic root of 121120203 is about 494.7724737421.

Adding to 121120203 its reverse (302021121), we get a palindrome (423141324).

The spelling of 121120203 in words is "one hundred twenty-one million, one hundred twenty thousand, two hundred three".