1213200052 has 24 divisors (see below), whose sum is σ = 2132754624. Its totient is φ = 603849792.

The previous prime is 1213200047. The next prime is 1213200059. The reversal of 1213200052 is 2500023121.

It is a junction number, because it is equal to n+sod(n) for n = 1213199999 and 1213200035.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213200059) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1415208 + ... + 1416064.

It is an arithmetic number, because the mean of its divisors is an integer number (88864776).

Almost surely, 2^1213200052 is an apocalyptic number.

It is an amenable number.

1213200052 is a deficient number, since it is larger than the sum of its proper divisors (919554572).

1213200052 is a wasteful number, since it uses less digits than its factorization.

1213200052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2055 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 1213200052 is about 34831.0214033410. The cubic root of 1213200052 is about 1066.5407989936.

Adding to 1213200052 its reverse (2500023121), we get a palindrome (3713223173).

The spelling of 1213200052 in words is "one billion, two hundred thirteen million, two hundred thousand, fifty-two".