131723103 has 4 divisors (see below), whose sum is σ = 175630808. Its totient is φ = 87815400.

The previous prime is 131723101. The next prime is 131723107. The reversal of 131723103 is 301327131.

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

It is not a de Polignac number, because 131723103 - 2¹ = 131723101 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 131723103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131723101) 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, 21953848 + ... + 21953853.

It is an arithmetic number, because the mean of its divisors is an integer number (43907702).

Almost surely, 2^131723103 is an apocalyptic number.

131723103 is a deficient number, since it is larger than the sum of its proper divisors (43907705).

131723103 is an equidigital number, since it uses as much as digits as its factorization.

131723103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43907704.

The product of its (nonzero) digits is 378, while the sum is 21.

The square root of 131723103 is about 11477.0685717216. The cubic root of 131723103 is about 508.8080622820.

The spelling of 131723103 in words is "one hundred thirty-one million, seven hundred twenty-three thousand, one hundred three".