1213101102203 has 8 divisors (see below), whose sum is σ = 1239140900928. Its totient is φ = 1187070850944.

The previous prime is 1213101102197. The next prime is 1213101102211. The reversal of 1213101102203 is 3022011013121.

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 1213101102203 - 2⁶ = 1213101102139 is a prime.

It is a super-2 number, since 2×1213101102203² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213101102503) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2129726 + ... + 2638547.

It is an arithmetic number, because the mean of its divisors is an integer number (154892612616).

Almost surely, 2^{1213101102203} is an apocalyptic number.

1213101102203 is a deficient number, since it is larger than the sum of its proper divisors (26039798725).

1213101102203 is an equidigital number, since it uses as much as digits as its factorization.

1213101102203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4773733.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1213101102203 its reverse (3022011013121), we get a palindrome (4235112115324).

The spelling of 1213101102203 in words is "one trillion, two hundred thirteen billion, one hundred one million, one hundred two thousand, two hundred three".