1010031220 has 24 divisors (see below), whose sum is σ = 2313890208. Its totient is φ = 367284000.

The previous prime is 1010031199. The next prime is 1010031289. The reversal of 1010031220 is 221300101.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1010031197 and 1010031206.

It is a congruent number.

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, 2295306 + ... + 2295745.

It is an arithmetic number, because the mean of its divisors is an integer number (96412092).

Almost surely, 2^1010031220 is an apocalyptic number.

1010031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010031220 is an abundant number, since it is smaller than the sum of its proper divisors (1303858988).

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

1010031220 is a wasteful number, since it uses less digits than its factorization.

1010031220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4591071 (or 4591069 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1010031220 is about 31780.9883420890. The cubic root of 1010031220 is about 1003.3326212975.

Adding to 1010031220 its reverse (221300101), we get a palindrome (1231331321).

The spelling of 1010031220 in words is "one billion, ten million, thirty-one thousand, two hundred twenty".