31313313201 has 16 divisors (see below), whose sum is σ = 41839689024. Its totient is φ = 20831275584.

The previous prime is 31313313193. The next prime is 31313313203. The reversal of 31313313201 is 10231331313.

It is not a de Polignac number, because 31313313201 - 2³ = 31313313193 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31313313203) 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, 6538930 + ... + 6543716.

It is an arithmetic number, because the mean of its divisors is an integer number (2614980564).

Almost surely, 2^31313313201 is an apocalyptic number.

It is an amenable number.

31313313201 is a deficient number, since it is larger than the sum of its proper divisors (10526375823).

31313313201 is a wasteful number, since it uses less digits than its factorization.

31313313201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8960.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 31313313201 its reverse (10231331313), we get a palindrome (41544644514).

The spelling of 31313313201 in words is "thirty-one billion, three hundred thirteen million, three hundred thirteen thousand, two hundred one".