1131304343540 has 48 divisors (see below), whose sum is σ = 2718865373952. Its totient is φ = 387342210816.

The previous prime is 1131304343539. The next prime is 1131304343557. The reversal of 1131304343540 is 453434031311.

It is a junction number, because it is equal to n+sod(n) for n = 1131304343497 and 1131304343506.

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, 5455817 + ... + 5659376.

It is an arithmetic number, because the mean of its divisors is an integer number (56643028624).

Almost surely, 2^{1131304343540} is an apocalyptic number.

1131304343540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131304343540 is an abundant number, since it is smaller than the sum of its proper divisors (1587561030412).

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

1131304343540 is a wasteful number, since it uses less digits than its factorization.

1131304343540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11115936 (or 11115934 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 1131304343540 its reverse (453434031311), we get a palindrome (1584738374851).

The spelling of 1131304343540 in words is "one trillion, one hundred thirty-one billion, three hundred four million, three hundred forty-three thousand, five hundred forty".