1311313030220 has 24 divisors (see below), whose sum is σ = 2800431219600. Its totient is φ = 515634953792.

The previous prime is 1311313030061. The next prime is 1311313030267. The reversal of 1311313030220 is 220303131131.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1311313030192 and 1311313030201.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 555639935 + ... + 555642294.

It is an arithmetic number, because the mean of its divisors is an integer number (116684634150).

Almost surely, 2^{1311313030220} is an apocalyptic number.

1311313030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311313030220 is an abundant number, since it is smaller than the sum of its proper divisors (1489118189380).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1311313030220 is a wasteful number, since it uses less digits than its factorization.

1311313030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1111282297 (or 1111282295 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1311313030220 its reverse (220303131131), we get a palindrome (1531616161351).

The spelling of 1311313030220 in words is "one trillion, three hundred eleven billion, three hundred thirteen million, thirty thousand, two hundred twenty".