31313330020201 has 8 divisors (see below), whose sum is σ = 31325051168424. Its totient is φ = 31301609349120.

The previous prime is 31313330020187. The next prime is 31313330020211. The reversal of 31313330020201 is 10202003331313.

It can be written as a sum of positive squares in 4 ways, for example, as 934228568025 + 30379101452176 = 966555^2 + 5511724^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31313330020201 - 2¹⁷ = 31313329889129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31313330020211) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182861061 + ... + 183032221.

It is an arithmetic number, because the mean of its divisors is an integer number (3915631396053).

Almost surely, 2^{31313330020201} is an apocalyptic number.

It is an amenable number.

31313330020201 is a deficient number, since it is larger than the sum of its proper divisors (11721148223).

31313330020201 is a wasteful number, since it uses less digits than its factorization.

31313330020201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238571.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 31313330020201 its reverse (10202003331313), we get a palindrome (41515333351514).

The spelling of 31313330020201 in words is "thirty-one trillion, three hundred thirteen billion, three hundred thirty million, twenty thousand, two hundred one".