1011143343012 has 192 divisors, whose sum is σ = 2783339919360. Its totient is φ = 282469017600.

The previous prime is 1011143343011. The next prime is 1011143343013. The reversal of 1011143343012 is 2103433411101.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1011143343011) and next prime (1011143343013).

It is not an unprimeable number, because it can be changed into a prime (1011143343011) 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, 50263068 + ... + 50283180.

It is an arithmetic number, because the mean of its divisors is an integer number (14496562080).

Almost surely, 2^{1011143343012} is an apocalyptic number.

1011143343012 is a gapful number since it is divisible by the number (12) 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 1011143343012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1391669959680).

1011143343012 is an abundant number, since it is smaller than the sum of its proper divisors (1772196576348).

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

1011143343012 is a wasteful number, since it uses less digits than its factorization.

1011143343012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20754 (or 20752 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 1011143343012 its reverse (2103433411101), we get a palindrome (3114576754113).

The spelling of 1011143343012 in words is "one trillion, eleven billion, one hundred forty-three million, three hundred forty-three thousand, twelve".