1131231210240 has 72 divisors (see below), whose sum is σ = 3612869689968. Its totient is φ = 301661655040.

The previous prime is 1131231210217. The next prime is 1131231210257. The reversal of 1131231210240 is 420121321311.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147291891 + ... + 147299570.

It is an arithmetic number, because the mean of its divisors is an integer number (50178745694).

Almost surely, 2^{1131231210240} is an apocalyptic number.

1131231210240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131231210240 is an abundant number, since it is smaller than the sum of its proper divisors (2481638479728).

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

1131231210240 is an equidigital number, since it uses as much as digits as its factorization.

1131231210240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 294591485 (or 294591471 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 1131231210240 its reverse (420121321311), we get a palindrome (1551352531551).

The spelling of 1131231210240 in words is "one trillion, one hundred thirty-one billion, two hundred thirty-one million, two hundred ten thousand, two hundred forty".