1211330134 has 32 divisors (see below), whose sum is σ = 2093921280. Its totient is φ = 514823712.

The previous prime is 1211330129. The next prime is 1211330149. The reversal of 1211330134 is 4310331121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 989847 + ... + 991069.

It is an arithmetic number, because the mean of its divisors is an integer number (65435040).

Almost surely, 2^1211330134 is an apocalyptic number.

1211330134 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

1211330134 is a deficient number, since it is larger than the sum of its proper divisors (882591146).

1211330134 is a wasteful number, since it uses less digits than its factorization.

1211330134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1764.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1211330134 is about 34804.1683423121. The cubic root of 1211330134 is about 1065.9925603781.

Adding to 1211330134 its reverse (4310331121), we get a palindrome (5521661255).

The spelling of 1211330134 in words is "one billion, two hundred eleven million, three hundred thirty thousand, one hundred thirty-four".