100240313123 has 4 divisors (see below), whose sum is σ = 100260354168. Its totient is φ = 100220272080.

The previous prime is 100240313113. The next prime is 100240313141. The reversal of 100240313123 is 321313042001.

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

It is a cyclic number.

It is not a de Polignac number, because 100240313123 - 2¹⁶ = 100240247587 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 100240313095 and 100240313104.

It is not an unprimeable number, because it can be changed into a prime (100240313113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10013018 + ... + 10023023.

It is an arithmetic number, because the mean of its divisors is an integer number (25065088542).

Almost surely, 2^100240313123 is an apocalyptic number.

100240313123 is a deficient number, since it is larger than the sum of its proper divisors (20041045).

100240313123 is an equidigital number, since it uses as much as digits as its factorization.

100240313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20041044.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 100240313123 its reverse (321313042001), we get a palindrome (421553355124).

The spelling of 100240313123 in words is "one hundred billion, two hundred forty million, three hundred thirteen thousand, one hundred twenty-three".