1213030201 has 8 divisors (see below), whose sum is σ = 1233865224. Its totient is φ = 1192225920.

The previous prime is 1213030193. The next prime is 1213030219. The reversal of 1213030201 is 1020303121.

It can be written as a sum of positive squares in 4 ways, for example, as 319225 + 1212710976 = 565^2 + 34824^2 .

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 1213030201 - 2³ = 1213030193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1213030261) 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, 80475 + ... + 94351.

It is an arithmetic number, because the mean of its divisors is an integer number (154233153).

Almost surely, 2^1213030201 is an apocalyptic number.

It is an amenable number.

1213030201 is a deficient number, since it is larger than the sum of its proper divisors (20835023).

1213030201 is a wasteful number, since it uses less digits than its factorization.

1213030201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15371.

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

The square root of 1213030201 is about 34828.5831035372. The cubic root of 1213030201 is about 1066.4910238897.

Adding to 1213030201 its reverse (1020303121), we get a palindrome (2233333322).

The spelling of 1213030201 in words is "one billion, two hundred thirteen million, thirty thousand, two hundred one".