1301331333 has 4 divisors (see below), whose sum is σ = 1735108448. Its totient is φ = 867554220.

The previous prime is 1301331263. The next prime is 1301331341. The reversal of 1301331333 is 3331331031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 1301331333 - 2⁸ = 1301331077 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 (1301331373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216888553 + ... + 216888558.

It is an arithmetic number, because the mean of its divisors is an integer number (433777112).

Almost surely, 2^1301331333 is an apocalyptic number.

It is an amenable number.

1301331333 is a deficient number, since it is larger than the sum of its proper divisors (433777115).

1301331333 is an equidigital number, since it uses as much as digits as its factorization.

1301331333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433777114.

The product of its (nonzero) digits is 729, while the sum is 21.

The square root of 1301331333 is about 36073.9702971547. The cubic root of 1301331333 is about 1091.7653219416.

Adding to 1301331333 its reverse (3331331031), we get a palindrome (4632662364).

The spelling of 1301331333 in words is "one billion, three hundred one million, three hundred thirty-one thousand, three hundred thirty-three".