313140340021 has 16 divisors (see below), whose sum is σ = 332021698560. Its totient is φ = 294809898240.

The previous prime is 313140339997. The next prime is 313140340033. The reversal of 313140340021 is 120043041313.

It is a cyclic number.

It is not a de Polignac number, because 313140340021 - 2⁷ = 313140339893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313140339974 and 313140340001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313140340091) 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 15 ways as a sum of consecutive naturals, for example, 12428925 + ... + 12454093.

It is an arithmetic number, because the mean of its divisors is an integer number (20751356160).

Almost surely, 2^313140340021 is an apocalyptic number.

313140340021 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

313140340021 is a deficient number, since it is larger than the sum of its proper divisors (18881358539).

313140340021 is a wasteful number, since it uses less digits than its factorization.

313140340021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36084.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 313140340021 its reverse (120043041313), we get a palindrome (433183381334).

The spelling of 313140340021 in words is "three hundred thirteen billion, one hundred forty million, three hundred forty thousand, twenty-one".