311212111310103 has 8 divisors (see below), whose sum is σ = 414973477044208. Its totient is φ = 207462743224704.

The previous prime is 311212111310077. The next prime is 311212111310119. The reversal of 311212111310103 is 301013111212113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 311212111310103 - 2⁶ = 311212111310039 is a prime.

It is a super-2 number, since 2×311212111310103² (a number of 30 digits) contains 22 as substring.

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 311212111310103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311212111310183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2999351650 + ... + 2999455407.

It is an arithmetic number, because the mean of its divisors is an integer number (51871684630526).

Almost surely, 2^{311212111310103} is an apocalyptic number.

311212111310103 is a deficient number, since it is larger than the sum of its proper divisors (103761365734105).

311212111310103 is a wasteful number, since it uses less digits than its factorization.

311212111310103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5998824353.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 311212111310103 its reverse (301013111212113), we get a palindrome (612225222522216).

The spelling of 311212111310103 in words is "three hundred eleven trillion, two hundred twelve billion, one hundred eleven million, three hundred ten thousand, one hundred three".