103002120 has 144 divisors (see below), whose sum is σ = 362702340. Its totient is φ = 25339392.

The previous prime is 103002091. The next prime is 103002121. The reversal of 103002120 is 21200301.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 7001316 + 96000804 = 2646^2 + 9798^2 .

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (103002121) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 59994 + ... + 61686.

Almost surely, 2^103002120 is an apocalyptic number.

103002120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103002120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181351170).

103002120 is an abundant number, since it is smaller than the sum of its proper divisors (259700220).

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

103002120 is a wasteful number, since it uses less digits than its factorization.

103002120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1736 (or 1716 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 103002120 is about 10148.9960094583. The cubic root of 103002120 is about 468.7580307957.

Adding to 103002120 its reverse (21200301), we get a palindrome (124202421).

The spelling of 103002120 in words is "one hundred three million, two thousand, one hundred twenty".