1212101012303 has 16 divisors (see below), whose sum is σ = 1256689287360. Its totient is φ = 1168148814336.

The previous prime is 1212101012263. The next prime is 1212101012351. The reversal of 1212101012303 is 3032101012121.

It is a cyclic number.

It is not a de Polignac number, because 1212101012303 - 2²⁸ = 1211832576847 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212101012363) 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 15 ways as a sum of consecutive naturals, for example, 6425201 + ... + 6611157.

It is an arithmetic number, because the mean of its divisors is an integer number (78543080460).

Almost surely, 2^{1212101012303} is an apocalyptic number.

1212101012303 is a deficient number, since it is larger than the sum of its proper divisors (44588275057).

1212101012303 is a wasteful number, since it uses less digits than its factorization.

1212101012303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 187666.

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

Adding to 1212101012303 its reverse (3032101012121), we get a palindrome (4244202024424).

The spelling of 1212101012303 in words is "one trillion, two hundred twelve billion, one hundred one million, twelve thousand, three hundred three".