313440100123540 has 36 divisors (see below), whose sum is σ = 712751659637724. Its totient is φ = 115731729275136.

The previous prime is 313440100123517. The next prime is 313440100123543. The reversal of 313440100123540 is 45321001044313.

It can be written as a sum of positive squares in 6 ways, for example, as 42725596936324 + 270714503187216 = 6536482^2 + 16453404^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313440100123543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46366875337 + ... + 46366882096.

It is an arithmetic number, because the mean of its divisors is an integer number (19798657212159).

Almost surely, 2^{313440100123540} is an apocalyptic number.

It is an amenable number.

313440100123540 is an abundant number, since it is smaller than the sum of its proper divisors (399311559514184).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313440100123540 is a wasteful number, since it uses less digits than its factorization.

313440100123540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92733757468 (or 92733757453 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 313440100123540 its reverse (45321001044313), we get a palindrome (358761101167853).

The spelling of 313440100123540 in words is "three hundred thirteen trillion, four hundred forty billion, one hundred million, one hundred twenty-three thousand, five hundred forty".