1231040110120 has 32 divisors (see below), whose sum is σ = 2769908613120. Its totient is φ = 492403890240.

The previous prime is 1231040110063. The next prime is 1231040110121. The reversal of 1231040110120 is 210110401321.

It is a junction number, because it is equal to n+sod(n) for n = 1231040110094 and 1231040110103.

It is not an unprimeable number, because it can be changed into a prime (1231040110121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1359385 + ... + 2076055.

It is an arithmetic number, because the mean of its divisors is an integer number (86559644160).

Almost surely, 2^{1231040110120} is an apocalyptic number.

1231040110120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1231040110120 is an abundant number, since it is smaller than the sum of its proper divisors (1538868503000).

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

1231040110120 is a wasteful number, since it uses less digits than its factorization.

1231040110120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 759625 (or 759621 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 1231040110120 its reverse (210110401321), we get a palindrome (1441150511441).

The spelling of 1231040110120 in words is "one trillion, two hundred thirty-one billion, forty million, one hundred ten thousand, one hundred twenty".