31431313404119 has 4 divisors (see below), whose sum is σ = 31431324719160. Its totient is φ = 31431302089080.

The previous prime is 31431313404107. The next prime is 31431313404121. The reversal of 31431313404119 is 91140431313413.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 31431313404119 - 2⁸ = 31431313403863 is a prime.

It is a super-2 number, since 2×31431313404119² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31431313404199) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1690124 + ... + 8106734.

It is an arithmetic number, because the mean of its divisors is an integer number (7857831179790).

Almost surely, 2^{31431313404119} is an apocalyptic number.

31431313404119 is a deficient number, since it is larger than the sum of its proper divisors (11315041).

31431313404119 is an equidigital number, since it uses as much as digits as its factorization.

31431313404119 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11315040.

The product of its (nonzero) digits is 46656, while the sum is 38.

The spelling of 31431313404119 in words is "thirty-one trillion, four hundred thirty-one billion, three hundred thirteen million, four hundred four thousand, one hundred nineteen".