103531331220 has 96 divisors (see below), whose sum is σ = 300717688320. Its totient is φ = 26593981440.

The previous prime is 103531331213. The next prime is 103531331251. The reversal of 103531331220 is 22133135301.

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 31 ways as a sum of consecutive naturals, for example, 72027 + ... + 460706.

It is an arithmetic number, because the mean of its divisors is an integer number (3132475920).

Almost surely, 2^103531331220 is an apocalyptic number.

103531331220 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 103531331220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150358844160).

103531331220 is an abundant number, since it is smaller than the sum of its proper divisors (197186357100).

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

103531331220 is a wasteful number, since it uses less digits than its factorization.

103531331220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 532865 (or 532863 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 24.

Adding to 103531331220 its reverse (22133135301), we get a palindrome (125664466521).

The spelling of 103531331220 in words is "one hundred three billion, five hundred thirty-one million, three hundred thirty-one thousand, two hundred twenty".