1231110330120 has 96 divisors (see below), whose sum is σ = 4364845729920. Its totient is φ = 298450988160.

The previous prime is 1231110330103. The next prime is 1231110330133. The reversal of 1231110330120 is 210330111321.

1231110330120 is a `hidden beast` number, since 1 + 2 + 311 + 1 + 0 + 330 + 1 + 20 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1231110330093 and 1231110330102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 155439264 + ... + 155447183.

It is an arithmetic number, because the mean of its divisors is an integer number (45467143020).

Almost surely, 2^{1231110330120} is an apocalyptic number.

1231110330120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231110330120 is an abundant number, since it is smaller than the sum of its proper divisors (3133735399800).

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

1231110330120 is a wasteful number, since it uses less digits than its factorization.

1231110330120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310886475 (or 310886468 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 1231110330120 its reverse (210330111321), we get a palindrome (1441440441441).

The spelling of 1231110330120 in words is "one trillion, two hundred thirty-one billion, one hundred ten million, three hundred thirty thousand, one hundred twenty".