231373 has 4 divisors (see below), whose sum is σ = 235228. Its totient is φ = 227520.

The previous prime is 231367. The next prime is 231379. The reversal of 231373 is 373132.

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

It is an interprime number because it is at equal distance from previous prime (231367) and next prime (231379).

It can be written as a sum of positive squares in 2 ways, for example, as 21609 + 209764 = 147^2 + 458^2 .

It is a cyclic number.

It is not a de Polignac number, because 231373 - 2⁹ = 230861 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 231373.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231379) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1836 + ... + 1957.

It is an arithmetic number, because the mean of its divisors is an integer number (58807).

2²³¹³⁷³ is an apocalyptic number.

It is an amenable number.

231373 is a deficient number, since it is larger than the sum of its proper divisors (3855).

231373 is an equidigital number, since it uses as much as digits as its factorization.

231373 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3854.

The product of its digits is 378, while the sum is 19.

The square root of 231373 is about 481.0124738507. The cubic root of 231373 is about 61.3909318979.

It can be divided in two parts, 2 and 31373, that added together give a triangular number (31375 = T₂₅₀).

The spelling of 231373 in words is "two hundred thirty-one thousand, three hundred seventy-three".