1131224351320 has 32 divisors (see below), whose sum is σ = 2908862618400. Its totient is φ = 387848348928.

The previous prime is 1131224351291. The next prime is 1131224351347. The reversal of 1131224351320 is 231534221311.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2020043205 + ... + 2020043764.

It is an arithmetic number, because the mean of its divisors is an integer number (90901956825).

Almost surely, 2^{1131224351320} is an apocalyptic number.

1131224351320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131224351320 is an abundant number, since it is smaller than the sum of its proper divisors (1777638267080).

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

1131224351320 is a wasteful number, since it uses less digits than its factorization.

1131224351320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040086987 (or 4040086983 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 1131224351320 its reverse (231534221311), we get a palindrome (1362758572631).

The spelling of 1131224351320 in words is "one trillion, one hundred thirty-one billion, two hundred twenty-four million, three hundred fifty-one thousand, three hundred twenty".