31023220030001 has 8 divisors (see below), whose sum is σ = 31810839869544. Its totient is φ = 30244601560320.

The previous prime is 31023220029917. The next prime is 31023220030039. The reversal of 31023220030001 is 10003002232013.

It can be written as a sum of positive squares in 4 ways, for example, as 6352617793600 + 24670602236401 = 2520440^2 + 4966951^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31023220030001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31023220030601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2250335486 + ... + 2250349271.

It is an arithmetic number, because the mean of its divisors is an integer number (3976354983693).

Almost surely, 2^{31023220030001} is an apocalyptic number.

It is an amenable number.

31023220030001 is a deficient number, since it is larger than the sum of its proper divisors (787619839543).

31023220030001 is a wasteful number, since it uses less digits than its factorization.

31023220030001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500684931.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31023220030001 its reverse (10003002232013), we get a palindrome (41026222262014).

The spelling of 31023220030001 in words is "thirty-one trillion, twenty-three billion, two hundred twenty million, thirty thousand, one".