102103240 has 16 divisors (see below), whose sum is σ = 229732380. Its totient is φ = 40841280.

The previous prime is 102103237. The next prime is 102103291. The reversal of 102103240 is 42301201.

It can be written as a sum of positive squares in 2 ways, for example, as 100520676 + 1582564 = 10026^2 + 1258^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 102103240.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1276251 + ... + 1276330.

Almost surely, 2^102103240 is an apocalyptic number.

102103240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102103240 is an abundant number, since it is smaller than the sum of its proper divisors (127629140).

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

102103240 is a wasteful number, since it uses less digits than its factorization.

102103240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2552592 (or 2552588 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102103240 is about 10104.6147873138. The cubic root of 102103240 is about 467.3904573336.

Adding to 102103240 its reverse (42301201), we get a palindrome (144404441).

The spelling of 102103240 in words is "one hundred two million, one hundred three thousand, two hundred forty".