31420311363514 has 8 divisors (see below), whose sum is σ = 47130492741588. Its totient is φ = 15710147116320.

The previous prime is 31420311363481. The next prime is 31420311363517. The reversal of 31420311363514 is 41536311302413.

It can be written as a sum of positive squares in 2 ways, for example, as 20258397870489 + 11161913493025 = 4500933^2 + 3340945^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (31420311363517) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2368584 + ... + 8273500.

Almost surely, 2^{31420311363514} is an apocalyptic number.

31420311363514 is a deficient number, since it is larger than the sum of its proper divisors (15710181378074).

31420311363514 is a wasteful number, since it uses less digits than its factorization.

31420311363514 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8565440.

The product of its (nonzero) digits is 77760, while the sum is 37.

Adding to 31420311363514 its reverse (41536311302413), we get a palindrome (72956622665927).

The spelling of 31420311363514 in words is "thirty-one trillion, four hundred twenty billion, three hundred eleven million, three hundred sixty-three thousand, five hundred fourteen".