20301233331 has 4 divisors (see below), whose sum is σ = 27068311112. Its totient is φ = 13534155552.

The previous prime is 20301233321. The next prime is 20301233333. The reversal of 20301233331 is 13333210302.

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

It is not a de Polignac number, because 20301233331 - 2¹⁹ = 20300709043 is a prime.

It is a super-2 number, since 2×20301233331² (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 = 20301233298 and 20301233307.

It is not an unprimeable number, because it can be changed into a prime (20301233333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3383538886 + ... + 3383538891.

It is an arithmetic number, because the mean of its divisors is an integer number (6767077778).

Almost surely, 2^20301233331 is an apocalyptic number.

20301233331 is a deficient number, since it is larger than the sum of its proper divisors (6767077781).

20301233331 is an equidigital number, since it uses as much as digits as its factorization.

20301233331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6767077780.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 20301233331 its reverse (13333210302), we get a palindrome (33634443633).

The spelling of 20301233331 in words is "twenty billion, three hundred one million, two hundred thirty-three thousand, three hundred thirty-one".