1213200001 has 8 divisors (see below), whose sum is σ = 1307819520. Its totient is φ = 1118765712.

The previous prime is 1213199969. The next prime is 1213200013. The reversal of 1213200001 is 1000023121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213200001 - 2⁵ = 1213199969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213200071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32545 + ... + 59038.

It is an arithmetic number, because the mean of its divisors is an integer number (163477440).

Almost surely, 2^1213200001 is an apocalyptic number.

It is an amenable number.

1213200001 is a deficient number, since it is larger than the sum of its proper divisors (94619519).

1213200001 is a wasteful number, since it uses less digits than its factorization.

1213200001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92615.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1213200001 is about 34831.0206712350. The cubic root of 1213200001 is about 1066.5407840486.

Adding to 1213200001 its reverse (1000023121), we get a palindrome (2213223122).

The spelling of 1213200001 in words is "one billion, two hundred thirteen million, two hundred thousand, one".