102020412 has 24 divisors (see below), whose sum is σ = 256359376. Its totient is φ = 31390848.

The previous prime is 102020407. The next prime is 102020419. The reversal of 102020412 is 214020201.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020419) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 326833 + ... + 327144.

Almost surely, 2^102020412 is an apocalyptic number.

102020412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

102020412 is an abundant number, since it is smaller than the sum of its proper divisors (154338964).

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

102020412 is a wasteful number, since it uses less digits than its factorization.

102020412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 653997 (or 653995 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 102020412 is about 10100.5154323925. The cubic root of 102020412 is about 467.2640379378.

Adding to 102020412 its reverse (214020201), we get a palindrome (316040613).

The spelling of 102020412 in words is "one hundred two million, twenty thousand, four hundred twelve".