31311230214340 has 48 divisors (see below), whose sum is σ = 66850278188400. Its totient is φ = 12317262348800.

The previous prime is 31311230214307. The next prime is 31311230214367. The reversal of 31311230214340 is 4341203211313.

It can be written as a sum of positive squares in 8 ways, for example, as 243181141956 + 31068049072384 = 493134^2 + 5573872^2 .

It is a junction number, because it is equal to n+sod(n) for n = 31311230214299 and 31311230214308.

It is an unprimeable number.

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, 51714487 + ... + 52316446.

It is an arithmetic number, because the mean of its divisors is an integer number (1392714128925).

Almost surely, 2^{31311230214340} is an apocalyptic number.

It is an amenable number.

31311230214340 is an abundant number, since it is smaller than the sum of its proper divisors (35539047974060).

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

31311230214340 is a wasteful number, since it uses less digits than its factorization.

31311230214340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 104031192 (or 104031190 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 31311230214340 its reverse (4341203211313), we get a palindrome (35652433425653).

The spelling of 31311230214340 in words is "thirty-one trillion, three hundred eleven billion, two hundred thirty million, two hundred fourteen thousand, three hundred forty".