1131430508544 has 192 divisors, whose sum is σ = 3527503499520. Its totient is φ = 315747532800.

The previous prime is 1131430508531. The next prime is 1131430508573. The reversal of 1131430508544 is 4458050341311.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1543444 + ... + 2155244.

It is an arithmetic number, because the mean of its divisors is an integer number (18372414060).

Almost surely, 2^{1131430508544} is an apocalyptic number.

1131430508544 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1131430508544, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1763751749760).

1131430508544 is an abundant number, since it is smaller than the sum of its proper divisors (2396072990976).

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

1131430508544 is an equidigital number, since it uses as much as digits as its factorization.

1131430508544 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611876 (or 611856 counting only the distinct ones).

The product of its (nonzero) digits is 115200, while the sum is 39.

Adding to 1131430508544 its reverse (4458050341311), we get a palindrome (5589480849855).

The spelling of 1131430508544 in words is "one trillion, one hundred thirty-one billion, four hundred thirty million, five hundred eight thousand, five hundred forty-four".