20303030203031 has 4 divisors (see below), whose sum is σ = 20303073855792. Its totient is φ = 20302986550272.

The previous prime is 20303030203021. The next prime is 20303030203037. The reversal of 20303030203031 is 13030203030302.

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 20303030203031 - 2⁶ = 20303030202967 is a prime.

It is a super-2 number, since 2×20303030203031² (a number of 27 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 = 20303030202994 and 20303030203012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303030203037) 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, 21121130 + ... + 22061463.

It is an arithmetic number, because the mean of its divisors is an integer number (5075768463948).

Almost surely, 2^{20303030203031} is an apocalyptic number.

20303030203031 is a deficient number, since it is larger than the sum of its proper divisors (43652761).

20303030203031 is an equidigital number, since it uses as much as digits as its factorization.

20303030203031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43652760.

The product of its (nonzero) digits is 972, while the sum is 20.

Adding to 20303030203031 its reverse (13030203030302), we get a palindrome (33333233233333).

The spelling of 20303030203031 in words is "twenty trillion, three hundred three billion, thirty million, two hundred three thousand, thirty-one".