1211420303101 has 16 divisors (see below), whose sum is σ = 1274623898688. Its totient is φ = 1149825283200.

The previous prime is 1211420303047. The next prime is 1211420303117. The reversal of 1211420303101 is 1013030241121.

It is a cyclic number.

It is not a de Polignac number, because 1211420303101 - 2⁷ = 1211420302973 is a prime.

It is a super-3 number, since 3×1211420303101³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211420303141) 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, 20132406 + ... + 20192488.

It is an arithmetic number, because the mean of its divisors is an integer number (79663993668).

Almost surely, 2^{1211420303101} is an apocalyptic number.

It is an amenable number.

1211420303101 is a deficient number, since it is larger than the sum of its proper divisors (63203595587).

1211420303101 is a wasteful number, since it uses less digits than its factorization.

1211420303101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73452.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1211420303101 its reverse (1013030241121), we get a palindrome (2224450544222).

The spelling of 1211420303101 in words is "one trillion, two hundred eleven billion, four hundred twenty million, three hundred three thousand, one hundred one".