102020021103 has 48 divisors (see below), whose sum is σ = 185898658176. Its totient is φ = 48920679360.

The previous prime is 102020021101. The next prime is 102020021141. The reversal of 102020021103 is 301120020201.

It is not a de Polignac number, because 102020021103 - 2¹ = 102020021101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102020021101) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2405601 + ... + 2447642.

It is an arithmetic number, because the mean of its divisors is an integer number (3872888712).

Almost surely, 2^102020021103 is an apocalyptic number.

102020021103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

102020021103 is a deficient number, since it is larger than the sum of its proper divisors (83878637073).

102020021103 is a wasteful number, since it uses less digits than its factorization.

102020021103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4853284 (or 4853277 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 102020021103 its reverse (301120020201), we get a palindrome (403140041304).

The spelling of 102020021103 in words is "one hundred two billion, twenty million, twenty-one thousand, one hundred three".