1211133231301 has 32 divisors (see below), whose sum is σ = 1543251087360. Its totient is φ = 925299438336.

The previous prime is 1211133231289. The next prime is 1211133231307. The reversal of 1211133231301 is 1031323311121.

It is not a de Polignac number, because 1211133231301 - 2³¹ = 1208985747653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211133231307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6434736 + ... + 6620278.

It is an arithmetic number, because the mean of its divisors is an integer number (48226596480).

Almost surely, 2^{1211133231301} is an apocalyptic number.

It is an amenable number.

1211133231301 is a deficient number, since it is larger than the sum of its proper divisors (332117856059).

1211133231301 is a wasteful number, since it uses less digits than its factorization.

1211133231301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188473.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 1211133231301 its reverse (1031323311121), we get a palindrome (2242456542422).

The spelling of 1211133231301 in words is "one trillion, two hundred eleven billion, one hundred thirty-three million, two hundred thirty-one thousand, three hundred one".