20301330231 has 48 divisors (see below), whose sum is σ = 36134332416. Its totient is φ = 10695613248.

The previous prime is 20301330229. The next prime is 20301330233. The reversal of 20301330231 is 13203310302.

20301330231 is a `hidden beast` number, since 2 + 0 + 301 + 330 + 2 + 31 = 666.

It is an interprime number because it is at equal distance from previous prime (20301330229) and next prime (20301330233).

It is not a de Polignac number, because 20301330231 - 2¹ = 20301330229 is a prime.

It is a super-2 number, since 2×20301330231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20301330233) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 692436 + ... + 721158.

It is an arithmetic number, because the mean of its divisors is an integer number (752798592).

Almost surely, 2^20301330231 is an apocalyptic number.

20301330231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20301330231 is a deficient number, since it is larger than the sum of its proper divisors (15833002185).

20301330231 is a wasteful number, since it uses less digits than its factorization.

20301330231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29612 (or 29609 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 20301330231 its reverse (13203310302), we get a palindrome (33504640533).

The spelling of 20301330231 in words is "twenty billion, three hundred one million, three hundred thirty thousand, two hundred thirty-one".