2112143043440 has 40 divisors (see below), whose sum is σ = 5043455085120. Its totient is φ = 822023237376.

The previous prime is 2112143043419. The next prime is 2112143043457. The reversal of 2112143043440 is 443403412112.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×2112143043440² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 356777960 + ... + 356783879.

It is an arithmetic number, because the mean of its divisors is an integer number (126086377128).

Almost surely, 2^{2112143043440} is an apocalyptic number.

2112143043440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2112143043440 is an abundant number, since it is smaller than the sum of its proper divisors (2931312041680).

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

2112143043440 is a wasteful number, since it uses less digits than its factorization.

2112143043440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713561889 (or 713561883 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 2112143043440 its reverse (443403412112), we get a palindrome (2555546455552).

The spelling of 2112143043440 in words is "two trillion, one hundred twelve billion, one hundred forty-three million, forty-three thousand, four hundred forty".