31431434424014 has 4 divisors (see below), whose sum is σ = 47147151636024. Its totient is φ = 15715717212006.

The previous prime is 31431434423989. The next prime is 31431434424053. The reversal of 31431434424014 is 41042443413413.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7857858606002 + ... + 7857858606005.

It is an arithmetic number, because the mean of its divisors is an integer number (11786787909006).

Almost surely, 2^{31431434424014} is an apocalyptic number.

31431434424014 is a deficient number, since it is larger than the sum of its proper divisors (15715717212010).

31431434424014 is a wasteful number, since it uses less digits than its factorization.

31431434424014 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15715717212009.

The product of its (nonzero) digits is 221184, while the sum is 38.

Adding to 31431434424014 its reverse (41042443413413), we get a palindrome (72473877837427).

The spelling of 31431434424014 in words is "thirty-one trillion, four hundred thirty-one billion, four hundred thirty-four million, four hundred twenty-four thousand, fourteen".