103561223220 has 1440 divisors, whose sum is σ = 447638171904. Its totient is φ = 19438755840.

The previous prime is 103561223209. The next prime is 103561223267. The reversal of 103561223220 is 22322165301.

It is a happy number.

103561223220 is a `hidden beast` number, since 1 + 0 + 3 + 5 + 612 + 23 + 2 + 20 = 666.

It is a super-3 number, since 3×103561223220³ (a number of 34 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 479 ways as a sum of consecutive naturals, for example, 2408400519 + ... + 2408400561.

Almost surely, 2^103561223220 is an apocalyptic number.

103561223220 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 103561223220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (223819085952).

103561223220 is an abundant number, since it is smaller than the sum of its proper divisors (344076948684).

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

103561223220 is a wasteful number, since it uses less digits than its factorization.

103561223220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 103561223220 its reverse (22322165301), we get a palindrome (125883388521).

The spelling of 103561223220 in words is "one hundred three billion, five hundred sixty-one million, two hundred twenty-three thousand, two hundred twenty".