16043023021812 has 24 divisors (see below), whose sum is σ = 37434574531200. Its totient is φ = 5347552319616.

The previous prime is 16043023021811. The next prime is 16043023021847. The reversal of 16043023021812 is 21812032034061.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16043023021811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14704012 + ... + 15757347.

It is an arithmetic number, because the mean of its divisors is an integer number (1559773938800).

Almost surely, 2^{16043023021812} is an apocalyptic number.

16043023021812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

16043023021812 is an abundant number, since it is smaller than the sum of its proper divisors (21391551509388).

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

16043023021812 is a wasteful number, since it uses less digits than its factorization.

16043023021812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30505255 (or 30505253 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 33.

Adding to 16043023021812 its reverse (21812032034061), we get a palindrome (37855055055873).

The spelling of 16043023021812 in words is "sixteen trillion, forty-three billion, twenty-three million, twenty-one thousand, eight hundred twelve".