103399809372 has 72 divisors (see below), whose sum is σ = 271031014800. Its totient is φ = 33198536448.

The previous prime is 103399809349. The next prime is 103399809397. The reversal of 103399809372 is 273908993301.

103399809372 is a `hidden beast` number, since 103 + 3 + 99 + 80 + 9 + 372 = 666.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 319248 + ... + 555624.

It is an arithmetic number, because the mean of its divisors is an integer number (3764319650).

Almost surely, 2^103399809372 is an apocalyptic number.

103399809372 is a gapful number since it is divisible by the number (12) 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 103399809372, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (135515507400).

103399809372 is an abundant number, since it is smaller than the sum of its proper divisors (167631205428).

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

103399809372 is a wasteful number, since it uses less digits than its factorization.

103399809372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236835 (or 236830 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 54.

The spelling of 103399809372 in words is "one hundred three billion, three hundred ninety-nine million, eight hundred nine thousand, three hundred seventy-two".