31311003220001 has 8 divisors (see below), whose sum is σ = 32682661249920. Its totient is φ = 29940204362112.

The previous prime is 31311003219917. The next prime is 31311003220037. The reversal of 31311003220001 is 10002230011313.

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

It is a de Polignac number, because none of the positive numbers 2^k-31311003220001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31311003220801) 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, 214718525 + ... + 214864298.

It is an arithmetic number, because the mean of its divisors is an integer number (4085332656240).

Almost surely, 2^{31311003220001} is an apocalyptic number.

It is an amenable number.

31311003220001 is a deficient number, since it is larger than the sum of its proper divisors (1371658029919).

31311003220001 is a wasteful number, since it uses less digits than its factorization.

31311003220001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 429586015.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 31311003220001 its reverse (10002230011313), we get a palindrome (41313233231314).

The spelling of 31311003220001 in words is "thirty-one trillion, three hundred eleven billion, three million, two hundred twenty thousand, one".