103555232440 has 96 divisors (see below), whose sum is σ = 255922526160. Its totient is φ = 37400192000.

The previous prime is 103555232423. The next prime is 103555232509. The reversal of 103555232440 is 44232555301.

It is a super-3 number, since 3×103555232440³ (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103555232396 and 103555232405.

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 23 ways as a sum of consecutive naturals, for example, 9763140 + ... + 9773740.

Almost surely, 2^103555232440 is an apocalyptic number.

103555232440 is a gapful number since it is divisible by the number (10) 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 103555232440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (127961263080).

103555232440 is an abundant number, since it is smaller than the sum of its proper divisors (152367293720).

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

103555232440 is a wasteful number, since it uses less digits than its factorization.

103555232440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10921 (or 10768 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 34.

Adding to 103555232440 its reverse (44232555301), we get a palindrome (147787787741).

The spelling of 103555232440 in words is "one hundred three billion, five hundred fifty-five million, two hundred thirty-two thousand, four hundred forty".