1140000311220 has 192 divisors, whose sum is σ = 3397712640000. Its totient is φ = 284785611264.

The previous prime is 1140000311189. The next prime is 1140000311227. The reversal of 1140000311220 is 221130000411.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1140000311220.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1140000311227) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 36962766 + ... + 36993594.

It is an arithmetic number, because the mean of its divisors is an integer number (17696420000).

Almost surely, 2^{1140000311220} is an apocalyptic number.

1140000311220 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 1140000311220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1698856320000).

1140000311220 is an abundant number, since it is smaller than the sum of its proper divisors (2257712328780).

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

1140000311220 is a wasteful number, since it uses less digits than its factorization.

1140000311220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31222 (or 31220 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1140000311220 its reverse (221130000411), we get a palindrome (1361130311631).

The spelling of 1140000311220 in words is "one trillion, one hundred forty billion, three hundred eleven thousand, two hundred twenty".