121010213203 has 8 divisors (see below), whose sum is σ = 132024807936. Its totient is φ = 109997896200.

The previous prime is 121010213201. The next prime is 121010213221. The reversal of 121010213203 is 302312010121.

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

It is a cyclic number.

It is not a de Polignac number, because 121010213203 - 2¹ = 121010213201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121010213201) 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 7 ways as a sum of consecutive naturals, for example, 457383 + ... + 671728.

It is an arithmetic number, because the mean of its divisors is an integer number (16503100992).

Almost surely, 2^121010213203 is an apocalyptic number.

121010213203 is a deficient number, since it is larger than the sum of its proper divisors (11014594733).

121010213203 is a wasteful number, since it uses less digits than its factorization.

121010213203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1138865.

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

Adding to 121010213203 its reverse (302312010121), we get a palindrome (423322223324).

The spelling of 121010213203 in words is "one hundred twenty-one billion, ten million, two hundred thirteen thousand, two hundred three".