10040543143521 has 24 divisors (see below), whose sum is σ = 15580658110752. Its totient is φ = 5727226032000.

The previous prime is 10040543143483. The next prime is 10040543143583. The reversal of 10040543143521 is 12534134504001.

It is not a de Polignac number, because 10040543143521 - 2³⁸ = 9765665236577 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (10040543143121) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 813520255 + ... + 813532596.

It is an arithmetic number, because the mean of its divisors is an integer number (649194087948).

Almost surely, 2^{10040543143521} is an apocalyptic number.

10040543143521 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10040543143521 is a deficient number, since it is larger than the sum of its proper divisors (5540114967231).

10040543143521 is a wasteful number, since it uses less digits than its factorization.

10040543143521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1627052893 (or 1627052882 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 10040543143521 its reverse (12534134504001), we get a palindrome (22574677647522).

The spelling of 10040543143521 in words is "ten trillion, forty billion, five hundred forty-three million, one hundred forty-three thousand, five hundred twenty-one".