20203122031 has 8 divisors (see below), whose sum is σ = 21394012464. Its totient is φ = 19012506240.

The previous prime is 20203122001. The next prime is 20203122041. The reversal of 20203122031 is 13022130202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20203122031 - 2⁷ = 20203121903 is a prime.

It is a super-2 number, since 2×20203122031² (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 = 20203121996 and 20203122014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203122001) 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 7 ways as a sum of consecutive naturals, for example, 93801 + ... + 221821.

It is an arithmetic number, because the mean of its divisors is an integer number (2674251558).

Almost surely, 2^20203122031 is an apocalyptic number.

20203122031 is a deficient number, since it is larger than the sum of its proper divisors (1190890433).

20203122031 is a wasteful number, since it uses less digits than its factorization.

20203122031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137321.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20203122031 its reverse (13022130202), we get a palindrome (33225252233).

The spelling of 20203122031 in words is "twenty billion, two hundred three million, one hundred twenty-two thousand, thirty-one".