61343111 has 2 divisors, whose sum is σ = 61343112. Its totient is φ = 61343110.

The previous prime is 61343083. The next prime is 61343137. The reversal of 61343111 is 11134316.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61343111 is a prime.

It is equal to p_3637010 and since 61343111 and 3637010 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (61343311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30671555 + 30671556.

It is an arithmetic number, because the mean of its divisors is an integer number (30671556).

Almost surely, 2^61343111 is an apocalyptic number.

61343111 is a deficient number, since it is larger than the sum of its proper divisors (1).

61343111 is an equidigital number, since it uses as much as digits as its factorization.

61343111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 20.

The square root of 61343111 is about 7832.1843057987. The cubic root of 61343111 is about 394.3864019130.

Adding to 61343111 its reverse (11134316), we get a palindrome (72477427).

The spelling of 61343111 in words is "sixty-one million, three hundred forty-three thousand, one hundred eleven".