1231200313110 has 192 divisors, whose sum is σ = 3466343911680. Its totient is φ = 302071910400.

The previous prime is 1231200313099. The next prime is 1231200313157. The reversal of 1231200313110 is 113130021321.

1231200313110 is a `hidden beast` number, since 12 + 31 + 200 + 313 + 110 = 666.

It is a super-2 number, since 2×1231200313110² (a number of 25 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 12157444 + ... + 12258296.

It is an arithmetic number, because the mean of its divisors is an integer number (18053874540).

Almost surely, 2^{1231200313110} is an apocalyptic number.

1231200313110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1231200313110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1733171955840).

1231200313110 is an abundant number, since it is smaller than the sum of its proper divisors (2235143598570).

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

1231200313110 is a wasteful number, since it uses less digits than its factorization.

1231200313110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101063 (or 101060 counting only the distinct ones).

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

Adding to 1231200313110 its reverse (113130021321), we get a palindrome (1344330334431).

The spelling of 1231200313110 in words is "one trillion, two hundred thirty-one billion, two hundred million, three hundred thirteen thousand, one hundred ten".