1011123030220 has 12 divisors (see below), whose sum is σ = 2123358363504. Its totient is φ = 404449212080.

The previous prime is 1011123030193. The next prime is 1011123030227. The reversal of 1011123030220 is 220303211101.

It is a junction number, because it is equal to n+sod(n) for n = 1011123030194 and 1011123030203.

It is not an unprimeable number, because it can be changed into a prime (1011123030227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25278075736 + ... + 25278075775.

It is an arithmetic number, because the mean of its divisors is an integer number (176946530292).

Almost surely, 2^{1011123030220} is an apocalyptic number.

1011123030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011123030220 is an abundant number, since it is smaller than the sum of its proper divisors (1112235333284).

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

1011123030220 is a wasteful number, since it uses less digits than its factorization.

1011123030220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50556151520 (or 50556151518 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1011123030220 its reverse (220303211101), we get a palindrome (1231426241321).

The spelling of 1011123030220 in words is "one trillion, eleven billion, one hundred twenty-three million, thirty thousand, two hundred twenty".