1213210300 has 18 divisors (see below), whose sum is σ = 2632666568. Its totient is φ = 485284080.

The previous prime is 1213210261. The next prime is 1213210309. The reversal of 1213210300 is 30123121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213210309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6065952 + ... + 6066151.

Almost surely, 2^1213210300 is an apocalyptic number.

1213210300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213210300 is an abundant number, since it is smaller than the sum of its proper divisors (1419456268).

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

1213210300 is a wasteful number, since it uses less digits than its factorization.

1213210300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12132117 (or 12132110 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1213210300 is about 34831.1685132727. The cubic root of 1213210300 is about 1066.5438020375.

Adding to 1213210300 its reverse (30123121), we get a palindrome (1243333421).

The spelling of 1213210300 in words is "one billion, two hundred thirteen million, two hundred ten thousand, three hundred".