309194940103 has 8 divisors (see below), whose sum is σ = 353590588800. Its totient is φ = 264855527160.

The previous prime is 309194940091. The next prime is 309194940121. The reversal of 309194940103 is 301049491903.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 309194940103 - 2⁵ = 309194940071 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 309194940103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (309194940133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14047153 + ... + 14069146.

It is an arithmetic number, because the mean of its divisors is an integer number (44198823600).

Almost surely, 2^309194940103 is an apocalyptic number.

309194940103 is a deficient number, since it is larger than the sum of its proper divisors (44395648697).

309194940103 is a wasteful number, since it uses less digits than its factorization.

309194940103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28117877.

The product of its (nonzero) digits is 104976, while the sum is 43.

The spelling of 309194940103 in words is "three hundred nine billion, one hundred ninety-four million, nine hundred forty thousand, one hundred three".