1311001030220 has 96 divisors (see below), whose sum is σ = 3364470587520. Its totient is φ = 418857062400.

The previous prime is 1311001030177. The next prime is 1311001030223. The reversal of 1311001030220 is 220301001131.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1311001030195 and 1311001030204.

It is not an unprimeable number, because it can be changed into a prime (1311001030223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2486555 + ... + 2967314.

It is an arithmetic number, because the mean of its divisors is an integer number (35046568620).

Almost surely, 2^{1311001030220} is an apocalyptic number.

1311001030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1311001030220 is an abundant number, since it is smaller than the sum of its proper divisors (2053469557300).

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

1311001030220 is a wasteful number, since it uses less digits than its factorization.

1311001030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5454003 (or 5454001 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 1311001030220 its reverse (220301001131), we get a palindrome (1531302031351).

The spelling of 1311001030220 in words is "one trillion, three hundred eleven billion, one million, thirty thousand, two hundred twenty".