20211303103231 has 4 divisors (see below), whose sum is σ = 21400203285792. Its totient is φ = 19022402920672.

The previous prime is 20211303103223. The next prime is 20211303103259. The reversal of 20211303103231 is 13230130311202.

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 20211303103231 - 2³ = 20211303103223 is a prime.

It is a super-2 number, since 2×20211303103231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211303103631) 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, 594450091255 + ... + 594450091288.

It is an arithmetic number, because the mean of its divisors is an integer number (5350050821448).

Almost surely, 2^{20211303103231} is an apocalyptic number.

20211303103231 is a deficient number, since it is larger than the sum of its proper divisors (1188900182561).

20211303103231 is a wasteful number, since it uses less digits than its factorization.

20211303103231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1188900182560.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20211303103231 its reverse (13230130311202), we get a palindrome (33441433414433).

The spelling of 20211303103231 in words is "twenty trillion, two hundred eleven billion, three hundred three million, one hundred three thousand, two hundred thirty-one".