1211300029 has 2 divisors, whose sum is σ = 1211300030. Its totient is φ = 1211300028.

The previous prime is 1211300009. The next prime is 1211300081. The reversal of 1211300029 is 9200031121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 939116025 + 272184004 = 30645^2 + 16498^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211300029 - 2⁹ = 1211299517 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1211299979 and 1211300015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211300009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605650014 + 605650015.

It is an arithmetic number, because the mean of its divisors is an integer number (605650015).

Almost surely, 2^1211300029 is an apocalyptic number.

It is an amenable number.

1211300029 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211300029 is an equidigital number, since it uses as much as digits as its factorization.

1211300029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 1211300029 is about 34803.7358483252. The cubic root of 1211300029 is about 1065.9837293223.

The spelling of 1211300029 in words is "one billion, two hundred eleven million, three hundred thousand, twenty-nine".