1213234619 has 2 divisors, whose sum is σ = 1213234620. Its totient is φ = 1213234618.

The previous prime is 1213234601. The next prime is 1213234621. The reversal of 1213234619 is 9164323121.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213234619 is a prime.

It is a super-2 number, since 2×1213234619² = 2943876481480150322, which contains 22 as substring.

Together with 1213234621, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1213234639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606617309 + 606617310.

It is an arithmetic number, because the mean of its divisors is an integer number (606617310).

Almost surely, 2^1213234619 is an apocalyptic number.

1213234619 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213234619 is an equidigital number, since it uses as much as digits as its factorization.

1213234619 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7776, while the sum is 32.

The square root of 1213234619 is about 34831.5176097741. The cubic root of 1213234619 is about 1066.5509283386.

The spelling of 1213234619 in words is "one billion, two hundred thirteen million, two hundred thirty-four thousand, six hundred nineteen".