1211301134133 has 32 divisors (see below), whose sum is σ = 1650206701440. Its totient is φ = 790144542720.

The previous prime is 1211301134083. The next prime is 1211301134143. The reversal of 1211301134133 is 3314311031121.

It is not a de Polignac number, because 1211301134133 - 2¹² = 1211301130037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1211301134143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 154715863 + ... + 154723691.

It is an arithmetic number, because the mean of its divisors is an integer number (51568959420).

Almost surely, 2^{1211301134133} is an apocalyptic number.

It is an amenable number.

1211301134133 is a deficient number, since it is larger than the sum of its proper divisors (438905567307).

1211301134133 is a wasteful number, since it uses less digits than its factorization.

1211301134133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13429.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 1211301134133 its reverse (3314311031121), we get a palindrome (4525612165254).

The spelling of 1211301134133 in words is "one trillion, two hundred eleven billion, three hundred one million, one hundred thirty-four thousand, one hundred thirty-three".