100043555451 has 16 divisors (see below), whose sum is σ = 153544070400. Its totient is φ = 56756465568.

The previous prime is 100043555441. The next prime is 100043555473. The reversal of 100043555451 is 154555340001.

It is not a de Polignac number, because 100043555451 - 2⁵ = 100043555419 is a prime.

It is not an unprimeable number, because it can be changed into a prime (100043555441) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17133696 + ... + 17139533.

It is an arithmetic number, because the mean of its divisors is an integer number (9596504400).

Almost surely, 2^100043555451 is an apocalyptic number.

100043555451 is a deficient number, since it is larger than the sum of its proper divisors (53500514949).

100043555451 is a wasteful number, since it uses less digits than its factorization.

100043555451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34273378.

The product of its (nonzero) digits is 30000, while the sum is 33.

Adding to 100043555451 its reverse (154555340001), we get a palindrome (254598895452).

The spelling of 100043555451 in words is "one hundred billion, forty-three million, five hundred fifty-five thousand, four hundred fifty-one".