20001030331 has 2 divisors, whose sum is σ = 20001030332. Its totient is φ = 20001030330.

The previous prime is 20001030311. The next prime is 20001030373. The reversal of 20001030331 is 13303010002.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20001030331 - 2²³ = 19992641723 is a prime.

It is a super-2 number, since 2×20001030331² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20001030311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10000515165 + 10000515166.

It is an arithmetic number, because the mean of its divisors is an integer number (10000515166).

Almost surely, 2^20001030331 is an apocalyptic number.

20001030331 is a deficient number, since it is larger than the sum of its proper divisors (1).

20001030331 is an equidigital number, since it uses as much as digits as its factorization.

20001030331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 54, while the sum is 13.

Adding to 20001030331 its reverse (13303010002), we get a palindrome (33304040333).

The spelling of 20001030331 in words is "twenty billion, one million, thirty thousand, three hundred thirty-one".