1211236052 has 12 divisors (see below), whose sum is σ = 2282714196. Its totient is φ = 559032000.

The previous prime is 1211236031. The next prime is 1211236067. The reversal of 1211236052 is 2506321121.

It can be written as a sum of positive squares in 2 ways, for example, as 541772176 + 669463876 = 23276^2 + 25874^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11646449 + ... + 11646552.

It is an arithmetic number, because the mean of its divisors is an integer number (190226183).

Almost surely, 2^1211236052 is an apocalyptic number.

It is an amenable number.

1211236052 is a deficient number, since it is larger than the sum of its proper divisors (1071478144).

1211236052 is a wasteful number, since it uses less digits than its factorization.

1211236052 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23293018 (or 23293016 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

The square root of 1211236052 is about 34802.8167250871. The cubic root of 1211236052 is about 1065.9649617062.

Adding to 1211236052 its reverse (2506321121), we get a palindrome (3717557173).

The spelling of 1211236052 in words is "one billion, two hundred eleven million, two hundred thirty-six thousand, fifty-two".