340143031 has 2 divisors, whose sum is σ = 340143032. Its totient is φ = 340143030.

The previous prime is 340143017. The next prime is 340143043. The reversal of 340143031 is 130341043.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 340143031 - 2¹⁹ = 339618743 is a prime.

It is a super-2 number, since 2×340143031² = 231394563075733922, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340143091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170071515 + 170071516.

It is an arithmetic number, because the mean of its divisors is an integer number (170071516).

Almost surely, 2^340143031 is an apocalyptic number.

340143031 is a deficient number, since it is larger than the sum of its proper divisors (1).

340143031 is an equidigital number, since it uses as much as digits as its factorization.

340143031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 340143031 is about 18442.9669793122. The cubic root of 340143031 is about 698.0510624844.

Adding to 340143031 its reverse (130341043), we get a palindrome (470484074).

The spelling of 340143031 in words is "three hundred forty million, one hundred forty-three thousand, thirty-one".