121203031201 has 16 divisors (see below), whose sum is σ = 146218608000. Its totient is φ = 100305948624.

The previous prime is 121203031127. The next prime is 121203031211. The reversal of 121203031201 is 102130302121.

It is not a de Polignac number, because 121203031201 - 2⁷ = 121203031073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121203031211) 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 15 ways as a sum of consecutive naturals, for example, 6082495 + ... + 6102388.

It is an arithmetic number, because the mean of its divisors is an integer number (9138663000).

Almost surely, 2^121203031201 is an apocalyptic number.

It is an amenable number.

121203031201 is a deficient number, since it is larger than the sum of its proper divisors (25015576799).

121203031201 is an equidigital number, since it uses as much as digits as its factorization.

121203031201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12184933 (or 12184919 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 121203031201 its reverse (102130302121), we get a palindrome (223333333322).

The spelling of 121203031201 in words is "one hundred twenty-one billion, two hundred three million, thirty-one thousand, two hundred one".