20002300031 has 4 divisors (see below), whose sum is σ = 22859771472. Its totient is φ = 17144828592.

The previous prime is 20002299983. The next prime is 20002300033. The reversal of 20002300031 is 13000320002.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20002300031 - 2¹⁰ = 20002299007 is a prime.

It is a super-2 number, since 2×20002300031² (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 = 20002299985 and 20002300021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20002300033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1428735710 + ... + 1428735723.

It is an arithmetic number, because the mean of its divisors is an integer number (5714942868).

Almost surely, 2^20002300031 is an apocalyptic number.

20002300031 is a deficient number, since it is larger than the sum of its proper divisors (2857471441).

20002300031 is an equidigital number, since it uses as much as digits as its factorization.

20002300031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2857471440.

The product of its (nonzero) digits is 36, while the sum is 11.

Adding to 20002300031 its reverse (13000320002), we get a palindrome (33002620033).

The spelling of 20002300031 in words is "twenty billion, two million, three hundred thousand, thirty-one".