31431230314 has 12 divisors (see below), whose sum is σ = 51822566082. Its totient is φ = 14286922760.

The previous prime is 31431230291. The next prime is 31431230357. The reversal of 31431230314 is 41303213413.

It can be written as a sum of positive squares in only one way, i.e., 31376099689 + 55130625 = 177133^2 + 7425^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 64940317 + ... + 64940800.

Almost surely, 2^31431230314 is an apocalyptic number.

31431230314 is a deficient number, since it is larger than the sum of its proper divisors (20391335768).

31431230314 is a wasteful number, since it uses less digits than its factorization.

31431230314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129881141 (or 129881130 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31431230314 its reverse (41303213413), we get a palindrome (72734443727).

The spelling of 31431230314 in words is "thirty-one billion, four hundred thirty-one million, two hundred thirty thousand, three hundred fourteen".