1301133213 has 20 divisors (see below), whose sum is σ = 1951762428. Its totient is φ = 863809920.

The previous prime is 1301133193. The next prime is 1301133217. The reversal of 1301133213 is 3123311031.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 354832569 + 946300644 = 18837^2 + 30762^2 .

It is not a de Polignac number, because 1301133213 - 2⁵ = 1301133181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1301133217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 13806 + ... + 52847.

Almost surely, 2^1301133213 is an apocalyptic number.

It is an amenable number.

1301133213 is a deficient number, since it is larger than the sum of its proper divisors (650629215).

1301133213 is an equidigital number, since it uses as much as digits as its factorization.

1301133213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66906 (or 66897 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

The square root of 1301133213 is about 36071.2241683035. The cubic root of 1301133213 is about 1091.7099141916.

Adding to 1301133213 its reverse (3123311031), we get a palindrome (4424444244).

The spelling of 1301133213 in words is "one billion, three hundred one million, one hundred thirty-three thousand, two hundred thirteen".