313148340987 has 4 divisors (see below), whose sum is σ = 417531121320. Its totient is φ = 208765560656.

The previous prime is 313148340961. The next prime is 313148340991. The reversal of 313148340987 is 789043841313.

It is a happy number.

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 313148340987 - 2²³ = 313139952379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (313148340287) 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, 52191390162 + ... + 52191390167.

It is an arithmetic number, because the mean of its divisors is an integer number (104382780330).

Almost surely, 2^313148340987 is an apocalyptic number.

313148340987 is a deficient number, since it is larger than the sum of its proper divisors (104382780333).

313148340987 is a wasteful number, since it uses less digits than its factorization.

313148340987 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104382780332.

The product of its (nonzero) digits is 1741824, while the sum is 51.

The spelling of 313148340987 in words is "three hundred thirteen billion, one hundred forty-eight million, three hundred forty thousand, nine hundred eighty-seven".