31431113143135 has 8 divisors (see below), whose sum is σ = 38934024022656. Its totient is φ = 24333765013920.

The previous prime is 31431113143127. The next prime is 31431113143147. The reversal of 31431113143135 is 53134131113413.

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

It is not a de Polignac number, because 31431113143135 - 2³ = 31431113143127 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31431113143135.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 101390687404 + ... + 101390687713.

It is an arithmetic number, because the mean of its divisors is an integer number (4866753002832).

Almost surely, 2^{31431113143135} is an apocalyptic number.

31431113143135 is a deficient number, since it is larger than the sum of its proper divisors (7502910879521).

31431113143135 is a wasteful number, since it uses less digits than its factorization.

31431113143135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202781375153.

The product of its digits is 19440, while the sum is 34.

Adding to 31431113143135 its reverse (53134131113413), we get a palindrome (84565244256548).

The spelling of 31431113143135 in words is "thirty-one trillion, four hundred thirty-one billion, one hundred thirteen million, one hundred forty-three thousand, one hundred thirty-five".