1020023020 has 12 divisors (see below), whose sum is σ = 2142048384. Its totient is φ = 408009200.

The previous prime is 1020022987. The next prime is 1020023027. The reversal of 1020023020 is 203200201.

1020023020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1020023020² = 2080893922659840800, which contains 22 as substring.

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 = 1020022988 and 1020023006.

It is not an unprimeable number, because it can be changed into a prime (1020023027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25500556 + ... + 25500595.

It is an arithmetic number, because the mean of its divisors is an integer number (178504032).

Almost surely, 2^1020023020 is an apocalyptic number.

1020023020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020023020 is an abundant number, since it is smaller than the sum of its proper divisors (1122025364).

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

1020023020 is a wasteful number, since it uses less digits than its factorization.

1020023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51001160 (or 51001158 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 1020023020 is about 31937.7992353888. The cubic root of 1020023020 is about 1006.6302822008.

Adding to 1020023020 its reverse (203200201), we get a palindrome (1223223221).

The spelling of 1020023020 in words is "one billion, twenty million, twenty-three thousand, twenty".