20003201031 has 32 divisors (see below), whose sum is σ = 29387047680. Its totient is φ = 12102071520.

The previous prime is 20003201027. The next prime is 20003201033. The reversal of 20003201031 is 13010230002.

It is a happy number.

It is not a de Polignac number, because 20003201031 - 2² = 20003201027 is a prime.

It is a super-2 number, since 2×20003201031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20003200998 and 20003201016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20003201033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2467621 + ... + 2475713.

It is an arithmetic number, because the mean of its divisors is an integer number (918345240).

Almost surely, 2^20003201031 is an apocalyptic number.

20003201031 is a deficient number, since it is larger than the sum of its proper divisors (9383846649).

20003201031 is an equidigital number, since it uses as much as digits as its factorization.

20003201031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8748 (or 8726 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 20003201031 its reverse (13010230002), we get a palindrome (33013431033).

The spelling of 20003201031 in words is "twenty billion, three million, two hundred one thousand, thirty-one".