31313342005 has 16 divisors (see below), whose sum is σ = 41038815744. Its totient is φ = 22747337280.

The previous prime is 31313341963. The next prime is 31313342029. The reversal of 31313342005 is 50024331313.

It is not a de Polignac number, because 31313342005 - 2³¹ = 29165858357 is a prime.

It is a Duffinian number.

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, 276357 + ... + 372826.

It is an arithmetic number, because the mean of its divisors is an integer number (2564925984).

Almost surely, 2^31313342005 is an apocalyptic number.

It is an amenable number.

31313342005 is a deficient number, since it is larger than the sum of its proper divisors (9725473739).

31313342005 is a wasteful number, since it uses less digits than its factorization.

31313342005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650076.

The product of its (nonzero) digits is 3240, while the sum is 25.

Adding to 31313342005 its reverse (50024331313), we get a palindrome (81337673318).

The spelling of 31313342005 in words is "thirty-one billion, three hundred thirteen million, three hundred forty-two thousand, five".