31313300313 has 16 divisors (see below), whose sum is σ = 42198408000. Its totient is φ = 20652036096.

The previous prime is 31313300299. The next prime is 31313300401. The reversal of 31313300313 is 31300331313.

It is not a de Polignac number, because 31313300313 - 2¹⁴ = 31313283929 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 31313300313.

It is not an unprimeable number, because it can be changed into a prime (31313300813) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 752938 + ... + 793436.

It is an arithmetic number, because the mean of its divisors is an integer number (2637400500).

Almost surely, 2^31313300313 is an apocalyptic number.

It is an amenable number.

31313300313 is a deficient number, since it is larger than the sum of its proper divisors (10885107687).

31313300313 is a wasteful number, since it uses less digits than its factorization.

31313300313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43256.

The product of its (nonzero) digits is 729, while the sum is 21.

Adding to 31313300313 its reverse (31300331313), we get a palindrome (62613631626).

The spelling of 31313300313 in words is "thirty-one billion, three hundred thirteen million, three hundred thousand, three hundred thirteen".