340303031 has 2 divisors, whose sum is σ = 340303032. Its totient is φ = 340303030.

The previous prime is 340303021. The next prime is 340303069. The reversal of 340303031 is 130303043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340303031 - 2¹⁰ = 340302007 is a prime.

It is a super-2 number, since 2×340303031² = 231612305815573922, 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 (340303021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170151515 + 170151516.

It is an arithmetic number, because the mean of its divisors is an integer number (170151516).

Almost surely, 2^340303031 is an apocalyptic number.

340303031 is a deficient number, since it is larger than the sum of its proper divisors (1).

340303031 is an equidigital number, since it uses as much as digits as its factorization.

340303031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 17.

The square root of 340303031 is about 18447.3041661919. The cubic root of 340303031 is about 698.1604974888.

Adding to 340303031 its reverse (130303043), we get a palindrome (470606074).

The spelling of 340303031 in words is "three hundred forty million, three hundred three thousand, thirty-one".