103131210 has 128 divisors (see below), whose sum is σ = 313173504. Its totient is φ = 21150720.

The previous prime is 103131209. The next prime is 103131211. The reversal of 103131210 is 12131301.

It is an interprime number because it is at equal distance from previous prime (103131209) and next prime (103131211).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (103131211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 100500 + ... + 101520.

It is an arithmetic number, because the mean of its divisors is an integer number (2446668).

Almost surely, 2^103131210 is an apocalyptic number.

103131210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 103131210, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (156586752).

103131210 is an abundant number, since it is smaller than the sum of its proper divisors (210042294).

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

103131210 is a wasteful number, since it uses less digits than its factorization.

103131210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1088.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 103131210 is about 10155.3537604556. The cubic root of 103131210 is about 468.9537766451.

Adding to 103131210 its reverse (12131301), we get a palindrome (115262511).

Subtracting from 103131210 its reverse (12131301), we obtain a palindrome (90999909).

The spelling of 103131210 in words is "one hundred three million, one hundred thirty-one thousand, two hundred ten".