1210203213 has 16 divisors (see below), whose sum is σ = 1689780096. Its totient is φ = 768965120.

The previous prime is 1210203209. The next prime is 1210203227. The reversal of 1210203213 is 3123020121.

It is a cyclic number.

It is not a de Polignac number, because 1210203213 - 2² = 1210203209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1210203192 and 1210203201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210203713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11820 + ... + 50597.

It is an arithmetic number, because the mean of its divisors is an integer number (105611256).

Almost surely, 2^1210203213 is an apocalyptic number.

It is an amenable number.

1210203213 is a deficient number, since it is larger than the sum of its proper divisors (479576883).

1210203213 is a wasteful number, since it uses less digits than its factorization.

1210203213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62724.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1210203213 is about 34787.9751207224. The cubic root of 1210203213 is about 1065.6618874845.

Adding to 1210203213 its reverse (3123020121), we get a palindrome (4333223334).

The spelling of 1210203213 in words is "one billion, two hundred ten million, two hundred three thousand, two hundred thirteen".