1140311423440 has 160 divisors (see below), whose sum is σ = 3048685871616. Its totient is φ = 388556144640.

The previous prime is 1140311423437. The next prime is 1140311423483. The reversal of 1140311423440 is 443241130411.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 1140311423399 and 1140311423408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63763300 + ... + 63781180.

Almost surely, 2^{1140311423440} is an apocalyptic number.

1140311423440 is a gapful number since it is divisible by the number (10) 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 1140311423440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1524342935808).

1140311423440 is an abundant number, since it is smaller than the sum of its proper divisors (1908374448176).

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

1140311423440 is a wasteful number, since it uses less digits than its factorization.

1140311423440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18597 (or 18591 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1140311423440 its reverse (443241130411), we get a palindrome (1583552553851).

The spelling of 1140311423440 in words is "one trillion, one hundred forty billion, three hundred eleven million, four hundred twenty-three thousand, four hundred forty".