1213134019 has 2 divisors, whose sum is σ = 1213134020. Its totient is φ = 1213134018.

The previous prime is 1213134001. The next prime is 1213134031. The reversal of 1213134019 is 9104313121.

It is a strong prime.

It is an emirp because it is prime and its reverse (9104313121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1213134019 - 2²¹ = 1211036867 is a prime.

It is a super-2 number, since 2×1213134019² = 2943388296110184722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1213133984 and 1213134002.

It is not a weakly prime, because it can be changed into another prime (1213134919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606567009 + 606567010.

It is an arithmetic number, because the mean of its divisors is an integer number (606567010).

Almost surely, 2^1213134019 is an apocalyptic number.

1213134019 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213134019 is an equidigital number, since it uses as much as digits as its factorization.

1213134019 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1213134019 is about 34830.0734854235. The cubic root of 1213134019 is about 1066.5214484706.

The spelling of 1213134019 in words is "one billion, two hundred thirteen million, one hundred thirty-four thousand, nineteen".