11100143431212 has 120 divisors (see below), whose sum is σ = 28751618742000. Its totient is φ = 3332814629760.

The previous prime is 11100143431207. The next prime is 11100143431249. The reversal of 11100143431212 is 21213434100111.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 18860614 + ... + 19440242.

It is an arithmetic number, because the mean of its divisors is an integer number (239596822850).

Almost surely, 2^{11100143431212} is an apocalyptic number.

11100143431212 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 11100143431212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14375809371000).

11100143431212 is an abundant number, since it is smaller than the sum of its proper divisors (17651475310788).

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

11100143431212 is a wasteful number, since it uses less digits than its factorization.

11100143431212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579789 (or 579754 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 11100143431212 its reverse (21213434100111), we get a palindrome (32313577531323).

The spelling of 11100143431212 in words is "eleven trillion, one hundred billion, one hundred forty-three million, four hundred thirty-one thousand, two hundred twelve".