352031231 has 4 divisors (see below), whose sum is σ = 352070472. Its totient is φ = 351991992.

The previous prime is 352031219. The next prime is 352031243. The reversal of 352031231 is 132130253.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is an interprime number because it is at equal distance from previous prime (352031219) and next prime (352031243).

It is a cyclic number.

It is not a de Polignac number, because 352031231 - 2⁶ = 352031167 is a prime.

It is a super-2 number, since 2×352031231² = 247851975198750722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (352031731) 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, 1205 + ... + 26561.

It is an arithmetic number, because the mean of its divisors is an integer number (88017618).

Almost surely, 2^352031231 is an apocalyptic number.

352031231 is a deficient number, since it is larger than the sum of its proper divisors (39241).

352031231 is a wasteful number, since it uses less digits than its factorization.

352031231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39240.

The product of its (nonzero) digits is 540, while the sum is 20.

The square root of 352031231 is about 18762.4953297796. The cubic root of 352031231 is about 706.0905483243.

Adding to 352031231 its reverse (132130253), we get a palindrome (484161484).

The spelling of 352031231 in words is "three hundred fifty-two million, thirty-one thousand, two hundred thirty-one".