1231333133211 has 12 divisors (see below), whose sum is σ = 1790371062480. Its totient is φ = 815452405200.

The previous prime is 1231333133197. The next prime is 1231333133249. The reversal of 1231333133211 is 1123313331321.

1231333133211 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 3 + 331 + 3 + 321 + 1 = 666.

It is not a de Polignac number, because 1231333133211 - 2¹⁰ = 1231333132187 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1231333133011) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 453027756 + ... + 453030473.

It is an arithmetic number, because the mean of its divisors is an integer number (149197588540).

Almost surely, 2^{1231333133211} is an apocalyptic number.

1231333133211 is a deficient number, since it is larger than the sum of its proper divisors (559037929269).

1231333133211 is a wasteful number, since it uses less digits than its factorization.

1231333133211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 906058386 (or 906058383 counting only the distinct ones).

The product of its digits is 2916, while the sum is 27.

Adding to 1231333133211 its reverse (1123313331321), we get a palindrome (2354646464532).

The spelling of 1231333133211 in words is "one trillion, two hundred thirty-one billion, three hundred thirty-three million, one hundred thirty-three thousand, two hundred eleven".