1131012043040 has 192 divisors, whose sum is σ = 2949156459648. Its totient is φ = 406462464000.

The previous prime is 1131012043039. The next prime is 1131012043061. The reversal of 1131012043040 is 403402101311.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 102562007 + ... + 102573033.

It is an arithmetic number, because the mean of its divisors is an integer number (15360189894).

Almost surely, 2^{1131012043040} is an apocalyptic number.

1131012043040 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 1131012043040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1474578229824).

1131012043040 is an abundant number, since it is smaller than the sum of its proper divisors (1818144416608).

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

1131012043040 is a wasteful number, since it uses less digits than its factorization.

1131012043040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11731 (or 11723 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1131012043040 its reverse (403402101311), we get a palindrome (1534414144351).

The spelling of 1131012043040 in words is "one trillion, one hundred thirty-one billion, twelve million, forty-three thousand, forty".