1151112303440 has 160 divisors (see below), whose sum is σ = 2991914755200. Its totient is φ = 408231526400.

The previous prime is 1151112303433. The next prime is 1151112303479. The reversal of 1151112303440 is 443032111511.

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, 183968792 + ... + 183975048.

It is an arithmetic number, because the mean of its divisors is an integer number (18699467220).

Almost surely, 2^{1151112303440} is an apocalyptic number.

1151112303440 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 1151112303440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1495957377600).

1151112303440 is an abundant number, since it is smaller than the sum of its proper divisors (1840802451760).

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

1151112303440 is a wasteful number, since it uses less digits than its factorization.

1151112303440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11421 (or 11415 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 1151112303440 its reverse (443032111511), we get a palindrome (1594144414951).

The spelling of 1151112303440 in words is "one trillion, one hundred fifty-one billion, one hundred twelve million, three hundred three thousand, four hundred forty".