31431224014402 has 8 divisors (see below), whose sum is σ = 47352717402300. Its totient is φ = 15646984880304.

The previous prime is 31431224014391. The next prime is 31431224014417. The reversal of 31431224014402 is 20441042213413.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 23740369463281 + 7690854551121 = 4872409^2 + 2773239^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34313562877 + ... + 34313563792.

Almost surely, 2^{31431224014402} is an apocalyptic number.

31431224014402 is a deficient number, since it is larger than the sum of its proper divisors (15921493387898).

31431224014402 is a wasteful number, since it uses less digits than its factorization.

31431224014402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68627126900.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 31431224014402 its reverse (20441042213413), we get a palindrome (51872266227815).

The spelling of 31431224014402 in words is "thirty-one trillion, four hundred thirty-one billion, two hundred twenty-four million, fourteen thousand, four hundred two".