102030002020 has 12 divisors (see below), whose sum is σ = 214263004284. Its totient is φ = 40812000800.

The previous prime is 102030002003. The next prime is 102030002023. The reversal of 102030002020 is 20200030201.

It can be written as a sum of positive squares in 2 ways, for example, as 37180323684 + 64849678336 = 192822^2 + 254656^2 .

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 = 102030001988 and 102030002006.

It is not an unprimeable number, because it can be changed into a prime (102030002023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550750031 + ... + 2550750070.

It is an arithmetic number, because the mean of its divisors is an integer number (17855250357).

Almost surely, 2^102030002020 is an apocalyptic number.

102030002020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102030002020 is an abundant number, since it is smaller than the sum of its proper divisors (112233002264).

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

102030002020 is a wasteful number, since it uses less digits than its factorization.

102030002020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5101500110 (or 5101500108 counting only the distinct ones).

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

Adding to 102030002020 its reverse (20200030201), we get a palindrome (122230032221).

The spelling of 102030002020 in words is "one hundred two billion, thirty million, two thousand, twenty".