1020153220 has 48 divisors (see below), whose sum is σ = 2165304960. Its totient is φ = 403709696.

The previous prime is 1020153193. The next prime is 1020153229. The reversal of 1020153220 is 223510201.

1020153220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 1020153194 and 1020153203.

It is not an unprimeable number, because it can be changed into a prime (1020153229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 833529 + ... + 834751.

It is an arithmetic number, because the mean of its divisors is an integer number (45110520).

Almost surely, 2^1020153220 is an apocalyptic number.

1020153220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020153220 is an abundant number, since it is smaller than the sum of its proper divisors (1145151740).

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

1020153220 is a wasteful number, since it uses less digits than its factorization.

1020153220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1642 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1020153220 is about 31939.8375074138. The cubic root of 1020153220 is about 1006.6731105436.

Adding to 1020153220 its reverse (223510201), we get a palindrome (1243663421).

The spelling of 1020153220 in words is "one billion, twenty million, one hundred fifty-three thousand, two hundred twenty".