920103210 has 96 divisors (see below), whose sum is σ = 2593216080. Its totient is φ = 224999424.

The previous prime is 920103203. The next prime is 920103211. The reversal of 920103210 is 12301029.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 138509361 + 781593849 = 11769^2 + 27957^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (920103211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 181186 + ... + 186194.

Almost surely, 2^920103210 is an apocalyptic number.

920103210 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 920103210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1296608040).

920103210 is an abundant number, since it is smaller than the sum of its proper divisors (1673112870).

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

920103210 is a wasteful number, since it uses less digits than its factorization.

920103210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5192 (or 5189 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 920103210 is about 30333.2030949585. The cubic root of 920103210 is about 972.6251947476.

Adding to 920103210 its reverse (12301029), we get a palindrome (932404239).

The spelling of 920103210 in words is "nine hundred twenty million, one hundred three thousand, two hundred ten".