31332111033213 has 6 divisors (see below), whose sum is σ = 45257493714654. Its totient is φ = 20888074022136.

The previous prime is 31332111033169. The next prime is 31332111033241. The reversal of 31332111033213 is 31233011123313.

31332111033213 is a `hidden beast` number, since 3 + 1 + 3 + 321 + 1 + 1 + 0 + 332 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 31322356903044 + 9754130169 = 5596638^2 + 98763^2 .

It is not a de Polignac number, because 31332111033213 - 2³⁶ = 31263391556477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31332111033913) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1740672835170 + ... + 1740672835187.

It is an arithmetic number, because the mean of its divisors is an integer number (7542915619109).

Almost surely, 2^{31332111033213} is an apocalyptic number.

It is an amenable number.

31332111033213 is a deficient number, since it is larger than the sum of its proper divisors (13925382681441).

31332111033213 is a wasteful number, since it uses less digits than its factorization.

31332111033213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3481345670363 (or 3481345670360 counting only the distinct ones).

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

Adding to 31332111033213 its reverse (31233011123313), we get a palindrome (62565122156526).

The spelling of 31332111033213 in words is "thirty-one trillion, three hundred thirty-two billion, one hundred eleven million, thirty-three thousand, two hundred thirteen".