1031201213 has 16 divisors (see below), whose sum is σ = 1204592256. Its totient is φ = 864542400.

The previous prime is 1031201207. The next prime is 1031201239. The reversal of 1031201213 is 3121021301.

It is a cyclic number.

It is not a de Polignac number, because 1031201213 - 2¹⁰ = 1031200189 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1031201263) 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, 49895 + ... + 67467.

It is an arithmetic number, because the mean of its divisors is an integer number (75287016).

Almost surely, 2^1031201213 is an apocalyptic number.

It is an amenable number.

1031201213 is a deficient number, since it is larger than the sum of its proper divisors (173391043).

1031201213 is a wasteful number, since it uses less digits than its factorization.

1031201213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17764.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1031201213 is about 32112.3218251188. The cubic root of 1031201213 is about 1010.2940727850.

Adding to 1031201213 its reverse (3121021301), we get a palindrome (4152222514).

The spelling of 1031201213 in words is "one billion, thirty-one million, two hundred one thousand, two hundred thirteen".