1131203212110 has 96 divisors (see below), whose sum is σ = 2948597795520. Its totient is φ = 300889096704.

The previous prime is 1131203212099. The next prime is 1131203212171. The reversal of 1131203212110 is 112123021311.

1131203212110 is a `hidden beast` number, since 1 + 1 + 312 + 0 + 321 + 21 + 10 = 666.

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 47 ways as a sum of consecutive naturals, for example, 58635346 + ... + 58654634.

It is an arithmetic number, because the mean of its divisors is an integer number (30714560370).

Almost surely, 2^{1131203212110} is an apocalyptic number.

1131203212110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1131203212110 is an abundant number, since it is smaller than the sum of its proper divisors (1817394583410).

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

1131203212110 is a wasteful number, since it uses less digits than its factorization.

1131203212110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20922 (or 20919 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1131203212110 its reverse (112123021311), we get a palindrome (1243326233421).

The spelling of 1131203212110 in words is "one trillion, one hundred thirty-one billion, two hundred three million, two hundred twelve thousand, one hundred ten".