1140323125640 has 96 divisors (see below), whose sum is σ = 2727890006400. Its totient is φ = 428926417920.

The previous prime is 1140323125631. The next prime is 1140323125663. The reversal of 1140323125640 is 465213230411.

It is a junction number, because it is equal to n+sod(n) for n = 1140323125597 and 1140323125606.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 13494641 + ... + 13578879.

It is an arithmetic number, because the mean of its divisors is an integer number (28415520900).

Almost surely, 2^{1140323125640} is an apocalyptic number.

1140323125640 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 1140323125640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1363945003200).

1140323125640 is an abundant number, since it is smaller than the sum of its proper divisors (1587566880760).

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

1140323125640 is a wasteful number, since it uses less digits than its factorization.

1140323125640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85455 (or 85434 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 32.

The spelling of 1140323125640 in words is "one trillion, one hundred forty billion, three hundred twenty-three million, one hundred twenty-five thousand, six hundred forty".