311220103030 has 16 divisors (see below), whose sum is σ = 561422005920. Its totient is φ = 124215636672.

The previous prime is 311220102931. The next prime is 311220103081. The reversal of 311220103030 is 30301022113.

It is a junction number, because it is equal to n+sod(n) for n = 311220102995 and 311220103013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34045770 + ... + 34054909.

It is an arithmetic number, because the mean of its divisors is an integer number (35088875370).

Almost surely, 2^311220103030 is an apocalyptic number.

311220103030 is a deficient number, since it is larger than the sum of its proper divisors (250201902890).

311220103030 is a wasteful number, since it uses less digits than its factorization.

311220103030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68101143.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 311220103030 its reverse (30301022113), we get a palindrome (341521125143).

The spelling of 311220103030 in words is "three hundred eleven billion, two hundred twenty million, one hundred three thousand, thirty".