20311232232303 has 6 divisors (see below), whose sum is σ = 29338446557784. Its totient is φ = 13540821488196.

The previous prime is 20311232232253. The next prime is 20311232232397. The reversal of 20311232232303 is 30323223211302.

20311232232303 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 1 + 2 + 322 + 32 + 303 = 666.

It is not a de Polignac number, because 20311232232303 - 2⁹ = 20311232231791 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20311232232803) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1128401790675 + ... + 1128401790692.

It is an arithmetic number, because the mean of its divisors is an integer number (4889741092964).

Almost surely, 2^{20311232232303} is an apocalyptic number.

20311232232303 is a deficient number, since it is larger than the sum of its proper divisors (9027214325481).

20311232232303 is a wasteful number, since it uses less digits than its factorization.

20311232232303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2256803581373 (or 2256803581370 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 20311232232303 its reverse (30323223211302), we get a palindrome (50634455443605).

The spelling of 20311232232303 in words is "twenty trillion, three hundred eleven billion, two hundred thirty-two million, two hundred thirty-two thousand, three hundred three".