1213232213133 has 72 divisors (see below), whose sum is σ = 1912079577408. Its totient is φ = 740708043264.

The previous prime is 1213232213129. The next prime is 1213232213159. The reversal of 1213232213133 is 3313122323121.

1213232213133 is a `hidden beast` number, since 1 + 2 + 1 + 323 + 2 + 21 + 313 + 3 = 666.

It is not a de Polignac number, because 1213232213133 - 2² = 1213232213129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213232213097 and 1213232213106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213232213233) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 13506816 + ... + 13596342.

Almost surely, 2^{1213232213133} is an apocalyptic number.

It is an amenable number.

1213232213133 is a deficient number, since it is larger than the sum of its proper divisors (698847364275).

1213232213133 is a wasteful number, since it uses less digits than its factorization.

1213232213133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89711 (or 89689 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

Adding to 1213232213133 its reverse (3313122323121), we get a palindrome (4526354536254).

The spelling of 1213232213133 in words is "one trillion, two hundred thirteen billion, two hundred thirty-two million, two hundred thirteen thousand, one hundred thirty-three".