110031231220 has 48 divisors (see below), whose sum is σ = 240561549648. Its totient is φ = 42236328960.

The previous prime is 110031231199. The next prime is 110031231263. The reversal of 110031231220 is 22132130011.

It can be written as a sum of positive squares in 8 ways, for example, as 17539823844 + 92491407376 = 132438^2 + 304124^2 .

It is a junction number, because it is equal to n+sod(n) for n = 110031231194 and 110031231203.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 964411 + ... + 1072450.

It is an arithmetic number, because the mean of its divisors is an integer number (5011698951).

Almost surely, 2^110031231220 is an apocalyptic number.

110031231220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

110031231220 is an abundant number, since it is smaller than the sum of its proper divisors (130530318428).

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

110031231220 is a wasteful number, since it uses less digits than its factorization.

110031231220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2036980 (or 2036978 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 110031231220 its reverse (22132130011), we get a palindrome (132163361231).

The spelling of 110031231220 in words is "one hundred ten billion, thirty-one million, two hundred thirty-one thousand, two hundred twenty".