121301020203 has 16 divisors (see below), whose sum is σ = 178854807936. Its totient is φ = 72508703040.

The previous prime is 121301020081. The next prime is 121301020207. The reversal of 121301020203 is 302020103121.

It is not a de Polignac number, because 121301020203 - 2¹⁰ = 121301019179 is a prime.

It is a super-2 number, since 2×121301020203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121301020207) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25174225 + ... + 25179042.

It is an arithmetic number, because the mean of its divisors is an integer number (11178425496).

Almost surely, 2^121301020203 is an apocalyptic number.

121301020203 is a deficient number, since it is larger than the sum of its proper divisors (57553787733).

121301020203 is a wasteful number, since it uses less digits than its factorization.

121301020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50353354.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 121301020203 its reverse (302020103121), we get a palindrome (423321123324).

The spelling of 121301020203 in words is "one hundred twenty-one billion, three hundred one million, twenty thousand, two hundred three".