31312223010313 has 4 divisors (see below), whose sum is σ = 35785397726080. Its totient is φ = 26839048294548.

The previous prime is 31312223010307. The next prime is 31312223010319. The reversal of 31312223010313 is 31301032221313.

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 an interprime number because it is at equal distance from previous prime (31312223010307) and next prime (31312223010319).

It is not a de Polignac number, because 31312223010313 - 2⁹ = 31312223009801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31312223010319) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2236587357873 + ... + 2236587357886.

It is an arithmetic number, because the mean of its divisors is an integer number (8946349431520).

Almost surely, 2^{31312223010313} is an apocalyptic number.

It is an amenable number.

31312223010313 is a deficient number, since it is larger than the sum of its proper divisors (4473174715767).

31312223010313 is an equidigital number, since it uses as much as digits as its factorization.

31312223010313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4473174715766.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31312223010313 its reverse (31301032221313), we get a palindrome (62613255231626).

The spelling of 31312223010313 in words is "thirty-one trillion, three hundred twelve billion, two hundred twenty-three million, ten thousand, three hundred thirteen".