20330230031 has 4 divisors (see below), whose sum is σ = 20358195312. Its totient is φ = 20302264752.

The previous prime is 20330230007. The next prime is 20330230057. The reversal of 20330230031 is 13003203302.

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 20330230031 - 2²² = 20326035727 is a prime.

It is a super-2 number, since 2×20330230031² (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 = 20330229991 and 20330230009.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20330230631) 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 3 ways as a sum of consecutive naturals, for example, 13981550 + ... + 13983003.

It is an arithmetic number, because the mean of its divisors is an integer number (5089548828).

Almost surely, 2^20330230031 is an apocalyptic number.

20330230031 is a deficient number, since it is larger than the sum of its proper divisors (27965281).

20330230031 is an equidigital number, since it uses as much as digits as its factorization.

20330230031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27965280.

The product of its (nonzero) digits is 324, while the sum is 17.

Adding to 20330230031 its reverse (13003203302), we get a palindrome (33333433333).

The spelling of 20330230031 in words is "twenty billion, three hundred thirty million, two hundred thirty thousand, thirty-one".