1212334091 has 2 divisors, whose sum is σ = 1212334092. Its totient is φ = 1212334090.

The previous prime is 1212334051. The next prime is 1212334111. The reversal of 1212334091 is 1904332121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1212334091 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212334091.

It is not a weakly prime, because it can be changed into another prime (1212334051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606167045 + 606167046.

It is an arithmetic number, because the mean of its divisors is an integer number (606167046).

Almost surely, 2^1212334091 is an apocalyptic number.

1212334091 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212334091 is an equidigital number, since it uses as much as digits as its factorization.

1212334091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The square root of 1212334091 is about 34818.5882970577. The cubic root of 1212334091 is about 1066.2869791974.

The spelling of 1212334091 in words is "one billion, two hundred twelve million, three hundred thirty-four thousand, ninety-one".