3212123111 has 2 divisors, whose sum is σ = 3212123112. Its totient is φ = 3212123110.

The previous prime is 3212123107. The next prime is 3212123113. The reversal of 3212123111 is 1113212123.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 3212123111 - 2² = 3212123107 is a prime.

Together with 3212123113, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3212123111.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3212123113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1606061555 + 1606061556.

It is an arithmetic number, because the mean of its divisors is an integer number (1606061556).

Almost surely, 2^3212123111 is an apocalyptic number.

3212123111 is a deficient number, since it is larger than the sum of its proper divisors (1).

3212123111 is an equidigital number, since it uses as much as digits as its factorization.

3212123111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72, while the sum is 17.

The square root of 3212123111 is about 56675.5953740232. The cubic root of 3212123111 is about 1475.4711678329.

Adding to 3212123111 its reverse (1113212123), we get a palindrome (4325335234).

It can be divided in two parts, 3212123 and 111, that multiplied together give a palindrome (356545653).

The spelling of 3212123111 in words is "three billion, two hundred twelve million, one hundred twenty-three thousand, one hundred eleven".