109423609357 has 4 divisors (see below), whose sum is σ = 109567399356. Its totient is φ = 109279819360.

The previous prime is 109423609307. The next prime is 109423609367. The reversal of 109423609357 is 753906324901.

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 12432473001 + 96991136356 = 111501^2 + 311434^2 .

It is a cyclic number.

It is not a de Polignac number, because 109423609357 - 2¹⁵ = 109423576589 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 109423609357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109423609307) 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, 71893858 + ... + 71895379.

It is an arithmetic number, because the mean of its divisors is an integer number (27391849839).

Almost surely, 2^109423609357 is an apocalyptic number.

It is an amenable number.

109423609357 is a deficient number, since it is larger than the sum of its proper divisors (143789999).

109423609357 is an equidigital number, since it uses as much as digits as its factorization.

109423609357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143789998.

The product of its (nonzero) digits is 1224720, while the sum is 49.

The spelling of 109423609357 in words is "one hundred nine billion, four hundred twenty-three million, six hundred nine thousand, three hundred fifty-seven".