1301253211 has 4 divisors (see below), whose sum is σ = 1306985832. Its totient is φ = 1295520592.

The previous prime is 1301253199. The next prime is 1301253257. The reversal of 1301253211 is 1123521031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1301253211 - 2²¹ = 1299156059 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1301253271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2865970 + ... + 2866423.

It is an arithmetic number, because the mean of its divisors is an integer number (326746458).

Almost surely, 2^1301253211 is an apocalyptic number.

1301253211 is a deficient number, since it is larger than the sum of its proper divisors (5732621).

1301253211 is an equidigital number, since it uses as much as digits as its factorization.

1301253211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5732620.

The product of its (nonzero) digits is 180, while the sum is 19.

The square root of 1301253211 is about 36072.8874779938. The cubic root of 1301253211 is about 1091.7434744189.

Adding to 1301253211 its reverse (1123521031), we get a palindrome (2424774242).

The spelling of 1301253211 in words is "one billion, three hundred one million, two hundred fifty-three thousand, two hundred eleven".