31431012334 has 8 divisors (see below), whose sum is σ = 47393359488. Its totient is φ = 15633225840.

The previous prime is 31431012331. The next prime is 31431012359. The reversal of 31431012334 is 43321013413.

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

It is a junction number, because it is equal to n+sod(n) for n = 31431012299 and 31431012308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431012331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41139687 + ... + 41140450.

It is an arithmetic number, because the mean of its divisors is an integer number (5924169936).

Almost surely, 2^31431012334 is an apocalyptic number.

31431012334 is a deficient number, since it is larger than the sum of its proper divisors (15962347154).

31431012334 is a wasteful number, since it uses less digits than its factorization.

31431012334 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82280330.

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

Adding to 31431012334 its reverse (43321013413), we get a palindrome (74752025747).

The spelling of 31431012334 in words is "thirty-one billion, four hundred thirty-one million, twelve thousand, three hundred thirty-four".