1211043434 has 8 divisors (see below), whose sum is σ = 1816812228. Its totient is φ = 605439360.

The previous prime is 1211043397. The next prime is 1211043439. The reversal of 1211043434 is 4343401121.

It can be written as a sum of positive squares in 2 ways, for example, as 1005207025 + 205836409 = 31705^2 + 14347^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (1211043439) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20777 + ... + 53420.

Almost surely, 2^1211043434 is an apocalyptic number.

1211043434 is a deficient number, since it is larger than the sum of its proper divisors (605768794).

1211043434 is an equidigital number, since it uses as much as digits as its factorization.

1211043434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82360.

The product of its (nonzero) digits is 1152, while the sum is 23.

The square root of 1211043434 is about 34800.0493390455. The cubic root of 1211043434 is about 1065.9084533365.

Adding to 1211043434 its reverse (4343401121), we get a palindrome (5554444555).

The spelling of 1211043434 in words is "one billion, two hundred eleven million, forty-three thousand, four hundred thirty-four".