1010032020 has 144 divisors (see below), whose sum is σ = 3239570880. Its totient is φ = 254016000.

The previous prime is 1010032019. The next prime is 1010032043. The reversal of 1010032020 is 202300101.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1010031993 and 1010032011.

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 47 ways as a sum of consecutive naturals, for example, 960495 + ... + 961545.

It is an arithmetic number, because the mean of its divisors is an integer number (22497020).

Almost surely, 2^1010032020 is an apocalyptic number.

1010032020 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 1010032020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1619785440).

1010032020 is an abundant number, since it is smaller than the sum of its proper divisors (2229538860).

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

1010032020 is a wasteful number, since it uses less digits than its factorization.

1010032020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1366 (or 1361 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1010032020 is about 31781.0009282275. Note that the first 3 decimals coincide. The cubic root of 1010032020 is about 1003.3328861956.

Adding to 1010032020 its reverse (202300101), we get a palindrome (1212332121).

The spelling of 1010032020 in words is "one billion, ten million, thirty-two thousand, twenty".