1213041200 has 60 divisors (see below), whose sum is σ = 3330672240. Its totient is φ = 415898880.

The previous prime is 1213041199. The next prime is 1213041217. The reversal of 1213041200 is 21403121.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 213815 + ... + 219414.

It is an arithmetic number, because the mean of its divisors is an integer number (55511204).

Almost surely, 2^1213041200 is an apocalyptic number.

1213041200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213041200 is an abundant number, since it is smaller than the sum of its proper divisors (2117631040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213041200 is a wasteful number, since it uses less digits than its factorization.

1213041200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433254 (or 433243 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 1213041200 is about 34828.7410050952. The cubic root of 1213041200 is about 1066.4942473047.

Adding to 1213041200 its reverse (21403121), we get a palindrome (1234444321).

The spelling of 1213041200 in words is "one billion, two hundred thirteen million, forty-one thousand, two hundred".