1211034055 has 64 divisors (see below), whose sum is σ = 1899417600. Its totient is φ = 719147520.

The previous prime is 1211034031. The next prime is 1211034061. The reversal of 1211034055 is 5504301121.

It is a happy number.

It is not a de Polignac number, because 1211034055 - 2¹⁷ = 1210902983 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 881349 + ... + 882721.

It is an arithmetic number, because the mean of its divisors is an integer number (29678400).

Almost surely, 2^1211034055 is an apocalyptic number.

1211034055 is a deficient number, since it is larger than the sum of its proper divisors (688383545).

1211034055 is a wasteful number, since it uses less digits than its factorization.

1211034055 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504.

The product of its (nonzero) digits is 600, while the sum is 22.

The square root of 1211034055 is about 34799.9145832285. The cubic root of 1211034055 is about 1065.9057016650.

Adding to 1211034055 its reverse (5504301121), we get a palindrome (6715335176).

The spelling of 1211034055 in words is "one billion, two hundred eleven million, thirty-four thousand, fifty-five".