20002320031 has 8 divisors (see below), whose sum is σ = 20122281504. Its totient is φ = 19882408800.

The previous prime is 20002319947. The next prime is 20002320067. The reversal of 20002320031 is 13002320002.

It is a happy number.

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-20002320031 is a prime.

It is a super-2 number, since 2×20002320031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20002319993 and 20002320020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002324031) 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, 1054725 + ... + 1073521.

It is an arithmetic number, because the mean of its divisors is an integer number (2515285188).

Almost surely, 2^20002320031 is an apocalyptic number.

20002320031 is a deficient number, since it is larger than the sum of its proper divisors (119961473).

20002320031 is a wasteful number, since it uses less digits than its factorization.

20002320031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25121.

The product of its (nonzero) digits is 72, while the sum is 13.

Adding to 20002320031 its reverse (13002320002), we get a palindrome (33004640033).

The spelling of 20002320031 in words is "twenty billion, two million, three hundred twenty thousand, thirty-one".