121021202000203 has 4 divisors (see below), whose sum is σ = 121085609241040. Its totient is φ = 120956794759368.

The previous prime is 121021202000159. The next prime is 121021202000227. The reversal of 121021202000203 is 302000202120121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 121021202000203 - 2⁴¹ = 118822178744651 is a prime.

It is a super-2 number, since 2×121021202000203² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121021202070203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32203617600 + ... + 32203621357.

It is an arithmetic number, because the mean of its divisors is an integer number (30271402310260).

Almost surely, 2^{121021202000203} is an apocalyptic number.

121021202000203 is a deficient number, since it is larger than the sum of its proper divisors (64407240837).

121021202000203 is an equidigital number, since it uses as much as digits as its factorization.

121021202000203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64407240836.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 121021202000203 its reverse (302000202120121), we get a palindrome (423021404120324).

The spelling of 121021202000203 in words is "one hundred twenty-one trillion, twenty-one billion, two hundred two million, two hundred three", and thus it is an aban number.