103212340 has 48 divisors (see below), whose sum is σ = 270232704. Its totient is φ = 32169600.

The previous prime is 103212323. The next prime is 103212391. The reversal of 103212340 is 43212301.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 31971 + ... + 35050.

It is an arithmetic number, because the mean of its divisors is an integer number (5629848).

Almost surely, 2^103212340 is an apocalyptic number.

103212340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103212340 is an abundant number, since it is smaller than the sum of its proper divisors (167020364).

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

103212340 is a wasteful number, since it uses less digits than its factorization.

103212340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67048 (or 67046 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 103212340 is about 10159.3474199872. The cubic root of 103212340 is about 469.0767146890.

Adding to 103212340 its reverse (43212301), we get a palindrome (146424641).

The spelling of 103212340 in words is "one hundred three million, two hundred twelve thousand, three hundred forty".