31313131001201 has 8 divisors (see below), whose sum is σ = 37669932031680. Its totient is φ = 25427204121168.

The previous prime is 31313131001197. The next prime is 31313131001297. The reversal of 31313131001201 is 10210013131313.

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 31313131001201 - 2² = 31313131001197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31313131001501) 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, 117718537466 + ... + 117718537731.

It is an arithmetic number, because the mean of its divisors is an integer number (4708741503960).

Almost surely, 2^{31313131001201} is an apocalyptic number.

It is an amenable number.

31313131001201 is a deficient number, since it is larger than the sum of its proper divisors (6356801030479).

31313131001201 is a wasteful number, since it uses less digits than its factorization.

31313131001201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235437075223.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 31313131001201 its reverse (10210013131313), we get a palindrome (41523144132514).

The spelling of 31313131001201 in words is "thirty-one trillion, three hundred thirteen billion, one hundred thirty-one million, one thousand, two hundred one".