31232201213133 has 16 divisors (see below), whose sum is σ = 46283405847040. Its totient is φ = 20815402319712.

The previous prime is 31232201213119. The next prime is 31232201213149. The reversal of 31232201213133 is 33131210223213.

31232201213133 is a `hidden beast` number, since 3 + 1 + 2 + 3 + 220 + 121 + 313 + 3 = 666.

It is not a de Polignac number, because 31232201213133 - 2¹² = 31232201209037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31232201213097 and 31232201213106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232201213233) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 168382141 + ... + 168567522.

It is an arithmetic number, because the mean of its divisors is an integer number (2892712865440).

Almost surely, 2^{31232201213133} is an apocalyptic number.

It is an amenable number.

31232201213133 is a deficient number, since it is larger than the sum of its proper divisors (15051204633907).

31232201213133 is a wasteful number, since it uses less digits than its factorization.

31232201213133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 336953105 (or 336953099 counting only the distinct ones).

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

Adding to 31232201213133 its reverse (33131210223213), we get a palindrome (64363411436346).

The spelling of 31232201213133 in words is "thirty-one trillion, two hundred thirty-two billion, two hundred one million, two hundred thirteen thousand, one hundred thirty-three".