313505406403 has 8 divisors (see below), whose sum is σ = 361985624672. Its totient is φ = 265948621056.

The previous prime is 313505406341. The next prime is 313505406419. The reversal of 313505406403 is 304604505313.

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-313505406403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313505403403) 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, 230857500 + ... + 230858857.

It is an arithmetic number, because the mean of its divisors is an integer number (45248203084).

Almost surely, 2^313505406403 is an apocalyptic number.

313505406403 is a deficient number, since it is larger than the sum of its proper divisors (48480218269).

313505406403 is an equidigital number, since it uses as much as digits as its factorization.

313505406403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 461716461.

The product of its (nonzero) digits is 64800, while the sum is 34.

The spelling of 313505406403 in words is "three hundred thirteen billion, five hundred five million, four hundred six thousand, four hundred three".