31431101412432 has 80 divisors (see below), whose sum is σ = 81438166373760. Its totient is φ = 10445925236736.

The previous prime is 31431101412397. The next prime is 31431101412457. The reversal of 31431101412432 is 23421410113413.

It is a self number, because there is not a number n which added to its sum of digits gives 31431101412432.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127583869 + ... + 127829987.

It is an arithmetic number, because the mean of its divisors is an integer number (1017977079672).

Almost surely, 2^{31431101412432} is an apocalyptic number.

It is an amenable number.

31431101412432 is an abundant number, since it is smaller than the sum of its proper divisors (50007064961328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31431101412432 is a wasteful number, since it uses less digits than its factorization.

31431101412432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254020 (or 254014 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 30.

Adding to 31431101412432 its reverse (23421410113413), we get a palindrome (54852511525845).

The spelling of 31431101412432 in words is "thirty-one trillion, four hundred thirty-one billion, one hundred one million, four hundred twelve thousand, four hundred thirty-two".