351040231 has 2 divisors, whose sum is σ = 351040232. Its totient is φ = 351040230.

The previous prime is 351040199. The next prime is 351040243. The reversal of 351040231 is 132040153.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 351040231 - 2⁵ = 351040199 is a prime.

It is a super-2 number, since 2×351040231² = 246458487561066722, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 351040199 and 351040208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351040031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 175520115 + 175520116.

It is an arithmetic number, because the mean of its divisors is an integer number (175520116).

Almost surely, 2^351040231 is an apocalyptic number.

351040231 is a deficient number, since it is larger than the sum of its proper divisors (1).

351040231 is an equidigital number, since it uses as much as digits as its factorization.

351040231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 351040231 is about 18736.0676503902. The cubic root of 351040231 is about 705.4273558695.

Adding to 351040231 its reverse (132040153), we get a palindrome (483080384).

The spelling of 351040231 in words is "three hundred fifty-one million, forty thousand, two hundred thirty-one".