342511111 has 2 divisors, whose sum is σ = 342511112. Its totient is φ = 342511110.

The previous prime is 342511093. The next prime is 342511129. The reversal of 342511111 is 111115243.

It is a balanced prime because it is at equal distance from previous prime (342511093) and next prime (342511129).

It is a cyclic number.

It is not a de Polignac number, because 342511111 - 2⁵ = 342511079 is a prime.

It is a super-2 number, since 2×342511111² = 234627722316908642, which contains 22 as substring.

342511111 is a modest number, since divided by 11111 gives 3425 as remainder.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342511711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171255555 + 171255556.

It is an arithmetic number, because the mean of its divisors is an integer number (171255556).

Almost surely, 2^342511111 is an apocalyptic number.

342511111 is a deficient number, since it is larger than the sum of its proper divisors (1).

342511111 is an equidigital number, since it uses as much as digits as its factorization.

342511111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 120, while the sum is 19.

The square root of 342511111 is about 18507.0557085669. The cubic root of 342511111 is about 699.6672643126.

Adding to 342511111 its reverse (111115243), we get a palindrome (453626354).

The spelling of 342511111 in words is "three hundred forty-two million, five hundred eleven thousand, one hundred eleven".