20203012322231 has 16 divisors (see below), whose sum is σ = 22333405074624. Its totient is φ = 18178166882304.

The previous prime is 20203012322219. The next prime is 20203012322239. The reversal of 20203012322231 is 13222321030202.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20203012322231 is a prime.

It is a super-2 number, since 2×20203012322231² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 20203012322197 and 20203012322206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20203012322239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13061066 + ... + 14525751.

It is an arithmetic number, because the mean of its divisors is an integer number (1395837817164).

Almost surely, 2^{20203012322231} is an apocalyptic number.

20203012322231 is a deficient number, since it is larger than the sum of its proper divisors (2130392752393).

20203012322231 is a wasteful number, since it uses less digits than its factorization.

20203012322231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27588730.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20203012322231 its reverse (13222321030202), we get a palindrome (33425333352433).

The spelling of 20203012322231 in words is "twenty trillion, two hundred three billion, twelve million, three hundred twenty-two thousand, two hundred thirty-one".