231377306 has 4 divisors (see below), whose sum is σ = 347065962. Its totient is φ = 115688652.

The previous prime is 231377303. The next prime is 231377329. The reversal of 231377306 is 603773132.

231377306 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 190302025 + 41075281 = 13795^2 + 6409^2 .

It is not an unprimeable number, because it can be changed into a prime (231377303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 57844325 + ... + 57844328.

Almost surely, 2^231377306 is an apocalyptic number.

231377306 is a deficient number, since it is larger than the sum of its proper divisors (115688656).

231377306 is a wasteful number, since it uses less digits than its factorization.

231377306 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 115688655.

The product of its (nonzero) digits is 15876, while the sum is 32.

The square root of 231377306 is about 15211.0915453165. The cubic root of 231377306 is about 613.9131273712.

The spelling of 231377306 in words is "two hundred thirty-one million, three hundred seventy-seven thousand, three hundred six".