100436317123 has 4 divisors (see below), whose sum is σ = 101101458448. Its totient is φ = 99771175800.

The previous prime is 100436317063. The next prime is 100436317127. The reversal of 100436317123 is 321713634001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100436317123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100436317127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332570436 + ... + 332570737.

It is an arithmetic number, because the mean of its divisors is an integer number (25275364612).

Almost surely, 2^100436317123 is an apocalyptic number.

100436317123 is a deficient number, since it is larger than the sum of its proper divisors (665141325).

100436317123 is an equidigital number, since it uses as much as digits as its factorization.

100436317123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665141324.

The product of its (nonzero) digits is 9072, while the sum is 31.

The spelling of 100436317123 in words is "one hundred billion, four hundred thirty-six million, three hundred seventeen thousand, one hundred twenty-three".