3112012221313 has 4 divisors (see below), whose sum is σ = 3112435689300. Its totient is φ = 3111588753328.

The previous prime is 3112012221257. The next prime is 3112012221343. The reversal of 3112012221313 is 3131222102113.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1797176185744 + 1314836035569 = 1340588^2 + 1146663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3112012221313 is a prime.

It is a super-3 number, since 3×3112012221313³ (a number of 38 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3112012221343) 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, 211722970 + ... + 211737667.

It is an arithmetic number, because the mean of its divisors is an integer number (778108922325).

Almost surely, 2^{3112012221313} is an apocalyptic number.

It is an amenable number.

3112012221313 is a deficient number, since it is larger than the sum of its proper divisors (423467987).

3112012221313 is an equidigital number, since it uses as much as digits as its factorization.

3112012221313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423467986.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 3112012221313 its reverse (3131222102113), we get a palindrome (6243234323426).

The spelling of 3112012221313 in words is "three trillion, one hundred twelve billion, twelve million, two hundred twenty-one thousand, three hundred thirteen".