1213133029 has 2 divisors, whose sum is σ = 1213133030. Its totient is φ = 1213133028.

The previous prime is 1213132993. The next prime is 1213133041. The reversal of 1213133029 is 9203313121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 697752225 + 515380804 = 26415^2 + 22702^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213133029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213132994 and 1213133012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1213133099) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606566514 + 606566515.

It is an arithmetic number, because the mean of its divisors is an integer number (606566515).

Almost surely, 2^1213133029 is an apocalyptic number.

It is an amenable number.

1213133029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1213133029 is an equidigital number, since it uses as much as digits as its factorization.

1213133029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 1213133029 is about 34830.0592735643. The cubic root of 1213133029 is about 1066.5211583525.

The spelling of 1213133029 in words is "one billion, two hundred thirteen million, one hundred thirty-three thousand, twenty-nine".