1021313030220 has 288 divisors, whose sum is σ = 3847121940480. Its totient is φ = 214022269440.

The previous prime is 1021313030219. The next prime is 1021313030279. The reversal of 1021313030220 is 220303131201.

1021313030220 is a `hidden beast` number, since 1 + 0 + 213 + 130 + 302 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1021313030193 and 1021313030202.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 54054 + ... + 1430226.

Almost surely, 2^{1021313030220} is an apocalyptic number.

1021313030220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1021313030220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1923560970240).

1021313030220 is an abundant number, since it is smaller than the sum of its proper divisors (2825808910260).

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

1021313030220 is a wasteful number, since it uses less digits than its factorization.

1021313030220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376245 (or 1376240 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1021313030220 its reverse (220303131201), we get a palindrome (1241616161421).

The spelling of 1021313030220 in words is "one trillion, twenty-one billion, three hundred thirteen million, thirty thousand, two hundred twenty".