100340623 has 4 divisors (see below), whose sum is σ = 101014200. Its totient is φ = 99667048.

The previous prime is 100340621. The next prime is 100340627. The reversal of 100340623 is 326043001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 326043001 = 37 ⋅8811973.

It is a cyclic number.

It is not a de Polignac number, because 100340623 - 2¹ = 100340621 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100340623.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100340621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 336565 + ... + 336862.

It is an arithmetic number, because the mean of its divisors is an integer number (25253550).

Almost surely, 2^100340623 is an apocalyptic number.

100340623 is a deficient number, since it is larger than the sum of its proper divisors (673577).

100340623 is an equidigital number, since it uses as much as digits as its factorization.

100340623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 673576.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 100340623 is about 10017.0166716443. The cubic root of 100340623 is about 464.6852967557.

Adding to 100340623 its reverse (326043001), we get a palindrome (426383624).

The spelling of 100340623 in words is "one hundred million, three hundred forty thousand, six hundred twenty-three".