1131344343140 has 48 divisors (see below), whose sum is σ = 2617468547904. Its totient is φ = 407324688000.

The previous prime is 1131344343137. The next prime is 1131344343163. The reversal of 1131344343140 is 413434431311.

It is a junction number, because it is equal to n+sod(n) for n = 1131344343097 and 1131344343106.

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, 25435574 + ... + 25480013.

It is an arithmetic number, because the mean of its divisors is an integer number (54530594748).

Almost surely, 2^{1131344343140} is an apocalyptic number.

1131344343140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131344343140 is an abundant number, since it is smaller than the sum of its proper divisors (1486124204764).

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

1131344343140 is a wasteful number, since it uses less digits than its factorization.

1131344343140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50915708 (or 50915706 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 32.

Adding to 1131344343140 its reverse (413434431311), we get a palindrome (1544778774451).

The spelling of 1131344343140 in words is "one trillion, one hundred thirty-one billion, three hundred forty-four million, three hundred forty-three thousand, one hundred forty".