1006231213 has 8 divisors (see below), whose sum is σ = 1093224888. Its totient is φ = 920607744.

The previous prime is 1006231199. The next prime is 1006231217. The reversal of 1006231213 is 3121326001.

It can be written as a sum of positive squares in 4 ways, for example, as 57714409 + 948516804 = 7597^2 + 30798^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1006231213 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1006231217) 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, 341020 + ... + 343957.

It is an arithmetic number, because the mean of its divisors is an integer number (136653111).

Almost surely, 2^1006231213 is an apocalyptic number.

1006231213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1006231213 is a deficient number, since it is larger than the sum of its proper divisors (86993675).

1006231213 is a wasteful number, since it uses less digits than its factorization.

1006231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685103.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1006231213 is about 31721.1477251376. The cubic root of 1006231213 is about 1002.0727716492.

Adding to 1006231213 its reverse (3121326001), we get a palindrome (4127557214).

The spelling of 1006231213 in words is "one billion, six million, two hundred thirty-one thousand, two hundred thirteen".