231057371 has 4 divisors (see below), whose sum is σ = 232529232. Its totient is φ = 229585512.

The previous prime is 231057367. The next prime is 231057377. The reversal of 231057371 is 173750132.

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

It is a cyclic number.

It is not a de Polignac number, because 231057371 - 2² = 231057367 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (231057377) 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, 735695 + ... + 736008.

It is an arithmetic number, because the mean of its divisors is an integer number (58132308).

Almost surely, 2^231057371 is an apocalyptic number.

231057371 is a deficient number, since it is larger than the sum of its proper divisors (1471861).

231057371 is a wasteful number, since it uses less digits than its factorization.

231057371 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1471860.

The product of its (nonzero) digits is 4410, while the sum is 29.

The square root of 231057371 is about 15200.5714037335. The cubic root of 231057371 is about 613.6300358002.

The spelling of 231057371 in words is "two hundred thirty-one million, fifty-seven thousand, three hundred seventy-one".