1012102020 has 48 divisors (see below), whose sum is σ = 3148763520. Its totient is φ = 269893728.

The previous prime is 1012101991. The next prime is 1012102027. The reversal of 1012102020 is 202012101.

1012102020 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 = 1012101993 and 1012102011.

It is not an unprimeable number, because it can be changed into a prime (1012102027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 936592 + ... + 937671.

It is an arithmetic number, because the mean of its divisors is an integer number (65599240).

Almost surely, 2^1012102020 is an apocalyptic number.

1012102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012102020 is an abundant number, since it is smaller than the sum of its proper divisors (2136661500).

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

1012102020 is a wasteful number, since it uses less digits than its factorization.

1012102020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874281 (or 1874273 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 1012102020 is about 31813.5508863754. The cubic root of 1012102020 is about 1004.0178419923.

Adding to 1012102020 its reverse (202012101), we get a palindrome (1214114121).

The spelling of 1012102020 in words is "one billion, twelve million, one hundred two thousand, twenty".