20303232311030 has 16 divisors (see below), whose sum is σ = 36548619055200. Its totient is φ = 8120670503232.

The previous prime is 20303232311023. The next prime is 20303232311039. The reversal of 20303232311030 is 3011323230302.

It is a junction number, because it is equal to n+sod(n) for n = 20303232310987 and 20303232311005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20303232311039) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77665634 + ... + 77926613.

It is an arithmetic number, because the mean of its divisors is an integer number (2284288690950).

Almost surely, 2^{20303232311030} is an apocalyptic number.

20303232311030 is a deficient number, since it is larger than the sum of its proper divisors (16245386744170).

20303232311030 is a wasteful number, since it uses less digits than its factorization.

20303232311030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155605303.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 20303232311030 its reverse (3011323230302), we get a palindrome (23314555541332).

The spelling of 20303232311030 in words is "twenty trillion, three hundred three billion, two hundred thirty-two million, three hundred eleven thousand, thirty".