100043045045 has 4 divisors (see below), whose sum is σ = 120051654060. Its totient is φ = 80034436032.

The previous prime is 100043045027. The next prime is 100043045149. The reversal of 100043045045 is 540540340001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 45738665956 + 54304379089 = 213866^2 + 233033^2 .

It is a cyclic number.

It is not a de Polignac number, because 100043045045 - 2³⁴ = 82863175861 is a prime.

It is a super-2 number, since 2×100043045045² (a number of 23 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 3 ways as a sum of consecutive naturals, for example, 10004304500 + ... + 10004304509.

It is an arithmetic number, because the mean of its divisors is an integer number (30012913515).

Almost surely, 2^100043045045 is an apocalyptic number.

It is an amenable number.

100043045045 is a deficient number, since it is larger than the sum of its proper divisors (20008609015).

100043045045 is an equidigital number, since it uses as much as digits as its factorization.

100043045045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20008609014.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 100043045045 its reverse (540540340001), we get a palindrome (640583385046).

The spelling of 100043045045 in words is "one hundred billion, forty-three million, forty-five thousand, forty-five".