31132200223213 has 2 divisors, whose sum is σ = 31132200223214. Its totient is φ = 31132200223212.

The previous prime is 31132200223151. The next prime is 31132200223219. The reversal of 31132200223213 is 31232200223113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27587516673924 + 3544683549289 = 5252382^2 + 1882733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31132200223213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31132200223219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15566100111606 + 15566100111607.

It is an arithmetic number, because the mean of its divisors is an integer number (15566100111607).

Almost surely, 2^{31132200223213} is an apocalyptic number.

It is an amenable number.

31132200223213 is a deficient number, since it is larger than the sum of its proper divisors (1).

31132200223213 is an equidigital number, since it uses as much as digits as its factorization.

31132200223213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31132200223213 its reverse (31232200223113), we get a palindrome (62364400446326).

The spelling of 31132200223213 in words is "thirty-one trillion, one hundred thirty-two billion, two hundred million, two hundred twenty-three thousand, two hundred thirteen".