133479021313 has 4 divisors (see below), whose sum is σ = 145613477808. Its totient is φ = 121344564820.

The previous prime is 133479021223. The next prime is 133479021409. The reversal of 133479021313 is 313120974331.

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 a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133479021313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133479021113) 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 3 ways as a sum of consecutive naturals, for example, 6067228231 + ... + 6067228252.

It is an arithmetic number, because the mean of its divisors is an integer number (36403369452).

Almost surely, 2^133479021313 is an apocalyptic number.

It is an amenable number.

133479021313 is a deficient number, since it is larger than the sum of its proper divisors (12134456495).

133479021313 is a wasteful number, since it uses less digits than its factorization.

133479021313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12134456494.

The product of its (nonzero) digits is 40824, while the sum is 37.

Adding to 133479021313 its reverse (313120974331), we get a palindrome (446599995644).

The spelling of 133479021313 in words is "one hundred thirty-three billion, four hundred seventy-nine million, twenty-one thousand, three hundred thirteen".