345333031 has 2 divisors, whose sum is σ = 345333032. Its totient is φ = 345333030.

The previous prime is 345333011. The next prime is 345333041. The reversal of 345333031 is 130333543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345333031 - 2⁷ = 345332903 is a prime.

It is a super-2 number, since 2×345333031² = 238509804599293922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 345332987 and 345333005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (345333011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172666515 + 172666516.

It is an arithmetic number, because the mean of its divisors is an integer number (172666516).

Almost surely, 2^345333031 is an apocalyptic number.

345333031 is a deficient number, since it is larger than the sum of its proper divisors (1).

345333031 is an equidigital number, since it uses as much as digits as its factorization.

345333031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4860, while the sum is 25.

The square root of 345333031 is about 18583.1383517424. The cubic root of 345333031 is about 701.5835110640.

Adding to 345333031 its reverse (130333543), we get a palindrome (475666574).

The spelling of 345333031 in words is "three hundred forty-five million, three hundred thirty-three thousand, thirty-one".