102030020 has 12 divisors (see below), whose sum is σ = 214263084. Its totient is φ = 40812000.

The previous prime is 102030007. The next prime is 102030059. The reversal of 102030020 is 20030201.

It can be written as a sum of positive squares in 2 ways, for example, as 68690944 + 33339076 = 8288^2 + 5774^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2550731 + ... + 2550770.

It is an arithmetic number, because the mean of its divisors is an integer number (17855257).

Almost surely, 2^102030020 is an apocalyptic number.

102030020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102030020 is an abundant number, since it is smaller than the sum of its proper divisors (112233064).

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

102030020 is a wasteful number, since it uses less digits than its factorization.

102030020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5101510 (or 5101508 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 8.

The square root of 102030020 is about 10100.9910404871. The cubic root of 102030020 is about 467.2787060219.

Adding to 102030020 its reverse (20030201), we get a palindrome (122060221).

The spelling of 102030020 in words is "one hundred two million, thirty thousand, twenty".