1143040311240 has 64 divisors (see below), whose sum is σ = 3460580798400. Its totient is φ = 302014317312.

The previous prime is 1143040311211. The next prime is 1143040311247. The reversal of 1143040311240 is 421130403411.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a self number, because there is not a number n which added to its sum of digits gives 1143040311240.

It is not an unprimeable number, because it can be changed into a prime (1143040311247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43681122 + ... + 43707281.

It is an arithmetic number, because the mean of its divisors is an integer number (54071574975).

Almost surely, 2^{1143040311240} is an apocalyptic number.

1143040311240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1143040311240 is an abundant number, since it is smaller than the sum of its proper divisors (2317540487160).

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

1143040311240 is a wasteful number, since it uses less digits than its factorization.

1143040311240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87388526 (or 87388522 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1143040311240 its reverse (421130403411), we get a palindrome (1564170714651).

The spelling of 1143040311240 in words is "one trillion, one hundred forty-three billion, forty million, three hundred eleven thousand, two hundred forty".