103631320 has 128 divisors (see below), whose sum is σ = 280324800. Its totient is φ = 34062336.

The previous prime is 103631309. The next prime is 103631327. The reversal of 103631320 is 23136301.

It is a super-3 number, since 3×103631320³ (a number of 25 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103631327) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 167652 + ... + 168268.

Almost surely, 2^103631320 is an apocalyptic number.

103631320 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 103631320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140162400).

103631320 is an abundant number, since it is smaller than the sum of its proper divisors (176693480).

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

103631320 is a wasteful number, since it uses less digits than its factorization.

103631320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 677 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 103631320 is about 10179.9469546752. The cubic root of 103631320 is about 469.7105808326.

Adding to 103631320 its reverse (23136301), we get a palindrome (126767621).

The spelling of 103631320 in words is "one hundred three million, six hundred thirty-one thousand, three hundred twenty".