31302331032213 has 6 divisors (see below), whose sum is σ = 45214478157654. Its totient is φ = 20868220688136.

The previous prime is 31302331032197. The next prime is 31302331032347. The reversal of 31302331032213 is 31223013320313.

31302331032213 is a `hidden beast` number, since 3 + 1 + 3 + 0 + 2 + 331 + 0 + 322 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 26918072957169 + 4384258075044 = 5188263^2 + 2093862^2 .

It is not a de Polignac number, because 31302331032213 - 2⁴ = 31302331032197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31302331030213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1739018390670 + ... + 1739018390687.

It is an arithmetic number, because the mean of its divisors is an integer number (7535746359609).

Almost surely, 2^{31302331032213} is an apocalyptic number.

It is an amenable number.

31302331032213 is a deficient number, since it is larger than the sum of its proper divisors (13912147125441).

31302331032213 is a wasteful number, since it uses less digits than its factorization.

31302331032213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3478036781363 (or 3478036781360 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 31302331032213 its reverse (31223013320313), we get a palindrome (62525344352526).

The spelling of 31302331032213 in words is "thirty-one trillion, three hundred two billion, three hundred thirty-one million, thirty-two thousand, two hundred thirteen".