103212340440 has 64 divisors (see below), whose sum is σ = 337785845760. Its totient is φ = 25021173120.

The previous prime is 103212340433. The next prime is 103212340457. The reversal of 103212340440 is 44043212301.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 103212340440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39094264 + ... + 39096903.

It is an arithmetic number, because the mean of its divisors is an integer number (5277903840).

Almost surely, 2^103212340440 is an apocalyptic number.

103212340440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

103212340440 is an abundant number, since it is smaller than the sum of its proper divisors (234573505320).

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

103212340440 is a wasteful number, since it uses less digits than its factorization.

103212340440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78191192 (or 78191188 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 103212340440 its reverse (44043212301), we get a palindrome (147255552741).

The spelling of 103212340440 in words is "one hundred three billion, two hundred twelve million, three hundred forty thousand, four hundred forty".