311553220213030 has 16 divisors (see below), whose sum is σ = 560857361570640. Its totient is φ = 124607606932512.

The previous prime is 311553220212937. The next prime is 311553220213087. The reversal of 311553220213030 is 30312022355113.

It is a junction number, because it is equal to n+sod(n) for n = 311553220212983 and 311553220213001.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1710048444 + ... + 1710230623.

It is an arithmetic number, because the mean of its divisors is an integer number (35053585098165).

Almost surely, 2^{311553220213030} is an apocalyptic number.

311553220213030 is a deficient number, since it is larger than the sum of its proper divisors (249304141357610).

311553220213030 is a wasteful number, since it uses less digits than its factorization.

311553220213030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3420288183.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 311553220213030 its reverse (30312022355113), we get a palindrome (341865242568143).

The spelling of 311553220213030 in words is "three hundred eleven trillion, five hundred fifty-three billion, two hundred twenty million, two hundred thirteen thousand, thirty".