31420302314 has 4 divisors (see below), whose sum is σ = 47130453474. Its totient is φ = 15710151156.

The previous prime is 31420302313. The next prime is 31420302359. The reversal of 31420302314 is 41320302413.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 22360118089 + 9060184225 = 149533^2 + 95185^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31420302314.

It is not an unprimeable number, because it can be changed into a prime (31420302313) 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 as a sum of consecutive naturals, namely, 7855075577 + ... + 7855075580.

Almost surely, 2^31420302314 is an apocalyptic number.

31420302314 is a deficient number, since it is larger than the sum of its proper divisors (15710151160).

31420302314 is a wasteful number, since it uses less digits than its factorization.

31420302314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15710151159.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 31420302314 its reverse (41320302413), we get a palindrome (72740604727).

Subtracting 31420302314 from its reverse (41320302413), we obtain a palindrome (9900000099).

The spelling of 31420302314 in words is "thirty-one billion, four hundred twenty million, three hundred two thousand, three hundred fourteen".