31670162213 has 4 divisors (see below), whose sum is σ = 31761431040. Its totient is φ = 31578893388.

The previous prime is 31670162119. The next prime is 31670162231. The reversal of 31670162213 is 31226107613.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31670162213 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31670162213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31670162113) 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 3 ways as a sum of consecutive naturals, for example, 45633893 + ... + 45634586.

It is an arithmetic number, because the mean of its divisors is an integer number (7940357760).

Almost surely, 2^31670162213 is an apocalyptic number.

It is an amenable number.

31670162213 is a deficient number, since it is larger than the sum of its proper divisors (91268827).

31670162213 is an equidigital number, since it uses as much as digits as its factorization.

31670162213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91268826.

The product of its (nonzero) digits is 9072, while the sum is 32.

Adding to 31670162213 its reverse (31226107613), we get a palindrome (62896269826).

The spelling of 31670162213 in words is "thirty-one billion, six hundred seventy million, one hundred sixty-two thousand, two hundred thirteen".