31081417340 has 12 divisors (see below), whose sum is σ = 65270976456. Its totient is φ = 12432566928.

The previous prime is 31081417321. The next prime is 31081417363. The reversal of 31081417340 is 4371418013.

It is a junction number, because it is equal to n+sod(n) for n = 31081417297 and 31081417306.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 777035414 + ... + 777035453.

It is an arithmetic number, because the mean of its divisors is an integer number (5439248038).

Almost surely, 2^31081417340 is an apocalyptic number.

It is an amenable number.

31081417340 is an abundant number, since it is smaller than the sum of its proper divisors (34189559116).

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

31081417340 is a wasteful number, since it uses less digits than its factorization.

31081417340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1554070876 (or 1554070874 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 32.

The spelling of 31081417340 in words is "thirty-one billion, eighty-one million, four hundred seventeen thousand, three hundred forty".